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revision 1.127 by adcroft, Thu Jan 30 18:35:42 2003 UTC revision 1.902 by jmc, Fri Nov 2 15:50:30 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/dic:
8      - add tons of "_d 0" (--> much better testreports !)
9       and then update outputs of tutorial_global_oce_biogeo
10    o pkg/mom_fluxform:
11      add a special version of momentum advection intended to conserve momentum
12      next to a bathymetry step or a coastline edge. (default = off = #undef)
13    o new read/write pickup version:
14      - for now, only implemented for main (mdsio) pickup file.
15      - write out only what is needed to restart; merge pickup_nh , pickup_ph
16        and main pickup together.
17      - read meta file; read only what is needed to restart; stop if a field
18        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
19        if it make sense (even if the restart is not perfect).
20      - if no meta file, assume that pickup to read corresponds exactly to
21        a pickup that would currently be written.
22      - read pickup written in the old format (until checkpoint59i) if it
23        recognizes an old meta file (no field-list).
24      - add a meta file in exp. which starts from a pickup: 2 cases:
25        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
26         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
27        b) a meta file describing the content of the associated pickup file
28         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
29    o pkg/mdsio & pkg/rw:
30      - new routine to read a meta file ; new set of routine to read
31        Multiple-fields file (with meta file).
32    o added open boundary conditions capability for seaice
33        HSNOW, HSALT, UICE, and VICE
34    
35    checkpoint59i
36    o adjoint:
37      * fix multiDimAdvection adjoint
38        (partial recomputation problem by TAF for fVerT(:,:,kDown)
39        and comlev1 size definition (maxpass vs. max. number of tracers)
40      * verification/global_ocean.90x45x15 adjoint now tests
41        NLFS and multiDimAdvection using DST3 (=30)
42      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
43    o pkg/kpp: add "_d 0" to real constant (if missing);
44      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
45      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
46    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
47      for internal parameters related to restart process (formerly from PARAMS.h)
48      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
49    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
50      as argument. (only atm2d & obcs write_pickup have not yet been updated)
51    o pkg/monitor:
52      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
53      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
54      - account for deep Atmosphere factor and density factor (anelastic)
55    o added open boundary conditions capability for seaice HEFF and AREA
56    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
57      thermodynamics
58      - requires a little reorganization, which affects the testreport results
59        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
60        so that now the conservative form is tested
61      - add a few comments
62    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
63    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
64    o add new diagnostics to seaice: advective, diffusive fluxes (only for
65      multidim-advection, for scheme 2 they are not filled) and transports,
66      thermodynamic growth rates
67    o change units of EmPmR (inside the code, + within coupling interface)
68      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
69      Affects results @ truncation level (cg2d match) and update output of
70       experiments: lab_sea(6), global_ocean.90x40x15(10),
71      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
72      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
73      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
74      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
75    
76    checkpoint59h
77    o pkg/exf:
78      - improve vectorization by moving if-statement out of loops in
79        exf_mapfields, exf_radiation
80      - exf_bulkformulae.F: introduce 2D fields and vectorize code
81    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
82    o testreport:
83      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
84        monitor & update offline_exf_seaice exp. output.
85      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
86    o pkg/seaice:
87      - bug fix in the evp solver: boundary conditions were affected be
88        masking of zMax/zMin (changes results)
89      - minor bug fix in boundary conditions in seaice_calc_strainrates
90        (changes results for no_slip)
91      - seaice_lsr.F: make interpolation of eta dependent on boundaries
92      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
93      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
94        stress formulation and no-slip boundary conditions
95    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
96      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
97    o pkg/seaice: a first HSALT time stepping equation has been checked in
98    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
99      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
100      without requiring DO-IF statements
101    o pkg/thsice:
102      use continuous power-law function for partition of energy between lateral
103      melting/freezing and thinning/thickening ; old code using step function
104      still available with #undef THSICE_FRACEN_POWERLAW
105      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
106    o testreport: change AD testing : check against results/output_adm.txt
107      using same scripts as for forward test.
108    
109    checkpoint59g
110    o adjoint testing: in preparation for changing testreport:
111      - output format: cost and grad written on separated lines
112      - ad output results in directory "results" (instead of "results_ad")
113    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
114    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
115    o pkg/ecco: allow user defined cost function contributions
116    o testreport:
117      Allow to choose (per experiment) the list of tested output variables
118       and the main variable (used to issue a pass/FAIL ) ;
119      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
120      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
121      Also modify printing of summary:
122       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
123       b) echo the list of tested variables in the individual summary.txt of
124          each experiment.
125    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
126      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
127      (but still depend on the tile decompostion of the domain).
128    o pkg/seaice: change a discretization detail to make the B-grid code
129      "more symmetric". This change is likely to remove all "ridges/leads" that
130      where quasi-aligned with the grid in B-grid solutions. It may also be
131      the solution to the stress coupling issues with the B-grid.
132    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
133      remove .cvsignore from input dir. (since testreport no longer run here).
134    o pkg/thsice:
135     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
136     - fix reshaping of sea-ice just after advection:
137       melt all the ice only if ice-volume is too small.
138     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
139       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
140     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
141    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
142      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
143    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
144      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
145      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
146      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
147      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
148      -> update output.txt
149    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
150     this affects truncation error: -> update output.txt of exp:
151      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
152      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
153    
154    checkpoint59f
155    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
156    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
157      a bounded range (in forward mode)
158    o pkg/ecco, ctrl, autodiff and mom_common:
159     internal parameter controls, completements of implementations
160    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
161    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
162      (not seem any difference in testing results).
163    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
164       at face corners.
165    o pkg/generic_advdiff:
166     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
167      loop range indices for computing vertical advection tendency
168      and do the calculation in the interior only (no overlap) ;
169      for now, only implemented for SOM advection (to save CPU time).
170     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
171    o exch2 adjoint
172      First set of changes:
173      - add exch2 hand-written adjoint templates
174      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
175        This will require cleanup in pkg/autodiff/*.F
176        (changed routines currently kept separate in verif. code/)
177      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
178        that used to hide exch2 or cubed-sphere specific code
179        (commented via 'cph-exch2')
180    o pkg/seaice
181      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
182    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
183       output of global_ocean.cs32x15.thsice .
184    
185    checkpoint59e
186    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
187      for B-grid vector (not yet tested) and C-grid vector (<- only used
188      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
189    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
190      (#ifdef ALLOW_SALT_PLUME)
191    o gather_2d/scatter_2d: removed halo regions
192    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
193      scheme and the corresponding test case (under front_relax dir). For now,
194      only available with Skew-flux form and not yet tested in realistic set-up.
195      adjoint: store directives updated, but gradient checks deteriorated,
196      so maybe GM/Redi adjoint is now broken.
197    o seaice adjoint
198      * add AREA, HEFF, HSNOW as control variable
199        (should not change lab_sea results)
200      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
201    o pkg/seaice:
202      * added computation of saltFlux in seaice_growth;
203        For time being, sea ice salinity is assumed constant
204        contribution of snow flooding to freshening of sea ice is neglected.
205        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
206        defaults to 0.0 in order to maintain backward compatibility.
207        Typical values for SEAICE_salinity are 4 to 10 g/kg.
208      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
209      * added SEAICE_availHeatFrac, which specifies fraction of surface level
210        heat content used to melt or grow ice
211      * commented out cap of HICE: it helps keep ice thinner
212      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
213      * applied OBCS T/S mask to HEFFM sea ice mask
214    
215    checkpoint59d
216    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
217     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
218     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
219    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
220     and change default value of parameter "GM_Small_Number";
221     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
222       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
223       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
224    o pkg/ecco: cost function when applying pkg/smooth to controls
225    o pkg/ctrl: add forcingPrecond run time parameter
226    o pkg/seaice:
227     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
228     - fix bug in metric terms of u-equation in LSR solver (implicit part),
229       changes verification/lab_sea
230     - rearrange implicit part of u-equation in LSR solver to make it easier to
231       read, understand, and debug. This causes changes at the truncation level.
232     - fix (serious) bug in the boundary conditions (sign error in the implicit
233       part) of the LSR solver. Changes all LSR results.
234     - fixed problem with HSNOW initialization to avoid thick snow when AREA
235       is initilized with small values - does not change lab_sea results.
236     - added HsnowFile initialization capability
237    o pkg/smooth: addition to model/src and pkg/ctrl so allow
238     initialization of pkg/smooth and application to control vector
239    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
240    o dependencies: pkg/profiles requires pkg/cal
241    o pkg/profiles:
242     - added option ALLOW_PROFILES_GENERICGRID
243         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
244         that interpolation information (grid points and coefficients) is provided
245         within the netcdf input files.
246         -> sample matlab scripts can be found in MITgcm_contrib/gael
247         that allow you to prepare netcdf input files.
248     - also modified: cleaner include statements, cleaner error print statements,
249       cleaner stops when error, and more tests of the netcdf input files consistency.
250    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
251    o pkg/seaice:
252     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
253       requires a new routine: seaice_diagnostics_fill.F
254     - make sure that seaice does not move if not forced (pressure replacement
255       method, Hibler and Ip, 1995), changes results
256     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
257     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
258       It is turned off by default (=-1.), because it changes the results.
259     - make it possible to read AREA from a file, too.
260    
261    checkpoint59c
262    o add S/R and diagnostics for oceanic mixed-layer depth
263    o move GMRedi call after all vertical mixing schemes (including KPP)
264    o pkg/thsice:
265     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
266      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
267    o pkg/obcs:
268     - bug fix for balance code
269    o pkg/seaice:
270      - allow values of SEAICE_elasticParm > 1
271      - add new parameter SEAICE_evpTauRelax as an alternative
272        to SEAICE_elasticParm
273      - make lsr boundary conditions free slip (by default), changes result
274      - add code for no slip boundary conditions for lsr
275      - set minimum of zeta to zero (and not 4e8) (changes results)
276      - add a cap on AREA after advecting AREA if seaice_growth is not called
277    o change calculation of Visbeck K:
278      - no longer depend on tapering scheme; instead, compute slope (limited
279        by GM_maxSlope). this is equivalent to what was comuted before with
280        clipping or linear tappering.
281      - fix vertical averaging (wrong by 1/2 level)
282      - leave the old version (but will not be maintained) within
283        #ifdef OLD_VISBECK_CALC / #endif
284      - update output of exp. ideal_2D_oce
285    o change error catch in calc_r_star to improve vectorization
286    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
287      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
288    o adjoint:
289      Re-organized adjoint checkpointing according to Matt Mazloff
290      (but with modifs/completions/cleanups)
291      Storing is now bundled into large arrays to optimized I/O
292      (and second step in cleanup of the_main_loop)
293    
294    checkpoint59b
295    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
296      - export/import (between ocean & coupler) fields needed for ocean DIC.
297    o pkg/seaice:
298      - get rid of three more exchanges seaice_calc_viscosities (required
299        different loop boundaries in seaice_lsr and seaice_ocean_stress)
300      - bug fix in seaice_ocean_stress (update of lab_sea required)
301      - reduce loop boundaries to necessary minimum also in seaice_evp
302      - go back to the old way of computing deltaC/Z as the adjoint likes that
303        better
304    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
305      passive tracer to an Age Tracer) + update output.txt
306    o pkg/exf:
307      - implement A-grid / C-grid selection for wind-stress input files.
308      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
309      for now, in exf_bulk_largeyeager04.F only :
310      - change implementation for case where windspeed + 2. components wind-stress
311        are read-in. AND use rhoConstFresh to convert evap.
312    o pkg/seaice:
313      - use correct EXCH_UV for wind-forcing (on A-grid).
314      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
315        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
316    o pkg/exf:
317      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
318      EXF_INTERPOLATION:
319      - merge global_with_exf/code version of exf_interp_read.F
320        to the main code ;
321      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
322        reading the file ; Important: This options needs to be defined to recover
323        previous code.
324        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
325      - no longer loose real*8 precision along the way when using exf_iprec=64.
326    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
327      - change discretisation of evp-solver in order to avoid another exchange
328        (changes lab_sea) and clean up a little
329      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
330        help the adjoint (this also changes the results slightly)
331      - add a few "_d 0" where they had been missing in seaice_evp.F
332      - cleaning up: remove unused seaice_calc_rhs.F
333    o pkg/exf: some cleaning-up:
334      - change various "constants" into runtime parameters
335      - cleaned-up Large&Yeager04 routine which should eventually
336        replace exf_bulkformulae.F (changed names of S/R and CPP)
337        and merged various ALLOW_ATM_WIND options
338     only used with thsice pkg (in thsice_get_exf.F):
339      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
340        which are used when useStabilityFct_overIce=TRUE (= the default)
341      - change default values of ice & snow emissivity and scale downward LW
342        by ice & snow emissivity.
343    o pkg/thsice:
344     fix few little problems, in thsice_calc_thickn.F:
345      - growth vertically (and not laterally) if iceFrac == iceMaskMax
346      - melt only laterally if hIce < hThinIce (as the comments say)
347      and in thsice_extend.F:
348      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
349      - start to form ice as soon as the minimum ice-volume is reachable.
350     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
351      and cpl_aim+ocn
352    o pkg/kpp
353     - move computation of surface related input fields to KPP into a new
354       subroutine kpp_forcing_surf.F
355     - remove wrong (within bi,bj loops) EXCH calls.
356     - little cleaning (add argument myThid in last position, cvs header ...)
357     - for now, fix conservation problem by exchanging KPPviscAz (may not
358       be the best fix)
359    o pkg/seaice
360     - check for inconsistent evp parameter/cpp-flag combination
361     - remove leftover errIO flat for obsolete name list error handling
362    o OpenAD
363     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
364    
365    checkpoint59a
366    o pkg/seaice: some parameter clarifications and a little bit of clean up
367    o pkg/thsice: rename run-time parameters:
368       himin       -> hIceMin
369       himin0      -> hThinIce
370       hihig       -> hThickIce
371       i0          -> i0swFrac
372       transCoef   -> bMeltCoef
373       frac_energy -> fracMelting
374      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
375       with default values (for now) that do not change the results.
376      remove old version of thsice vars advection in pkg/seaice.
377    o in FFIELDS.h:
378      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
379      - make pLoad & sIceLoad always available (but still only used if
380         ATMOSPHERIC_LOADING is #define).
381    o pkg/kpp: replaced _KPP_RL with _RL
382    o bug fixes for vertical diffusivity computations when both KPP and
383        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
384        are no longer updating the vertical diffusivity array
385        (passed as argument) but are (re-) setting those arrays.
386    o pkg/seaice: fix bug in evp solver, while doing that
387      - change (improve?) discretization of stress computations for both
388        cgrid-lsr and evp solver
389      - add a new routine to compute strain rates
390      - the above changes lab_sea results
391      - add no slip conditions for evp solver (off by default), lsr-version
392        may follow
393      - fix exchange for shear at Z-points (does not change lab_sea)
394      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
395        (to force the user to pick a time step since there is not "safe" way
396        of choosing it)
397      - add principal stress diagnostics
398      - rearrange fields for evp a little to avoid having to call a: too many
399        exchanges and b: exchanges for stress trensor components which we do
400        not have.
401      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
402        of evp, complete rewrite for lsr case (latter is does not yet work
403        in all cases)
404    o pkg/kpp: add code to have mixing in shelf ice caverns
405      - add myThid to all kpp routines (long overdue)
406    
407    checkpoint59
408    o pkg/exf:
409      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
410        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
411      - move exf header files from lower_case.h to UPPER_CASE.h ;
412        add missing cvs Header & Name
413      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
414      - add namelist param. selectStressGridPosition, exf_monFreq
415      - retire many _CLIM routines, and remove data.exf_clim
416        + params moved to data.exf
417        + climsst, climsss now handled by exf_set_gen, i.e.
418          climss?period=0 refers to constant field,
419          climss?period=-12 to monthly forcing
420      - split up namelists in data.exf
421    o pkg/seaice:
422      - remove seaice_exch and seaice_exch_uv
423      - remove superfluous exchange of theta
424      - add myThid to seaice_budget_ocean/ice
425      - add new interface for atmospheric wind forcing (C-grid only)
426        + new routine
427        + two new field (taux, tauy for stress over ice)
428        + removed one global field (DAIRN) for C-grid case only
429    o pkg/thsise
430      - 2nd set of modifs for thsice adjoint in conjunction with exf
431    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
432    
433    checkpoint58y_post
434    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
435      vertical diffusivity, similar to that in MOM4; turned on using
436      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
437      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
438    o Added capability for 3D specification of background vertical diffusion
439      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
440      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
441      "data" file that contains the 3D vertical diffusivity coefficients.
442    o ice dynamics (pkg/seaice) with thsice thermodynamics:
443      - add code within pkg thsice to advect & diffuse sea-ice fields
444      similar to (and will replace) what has been added in  seaice_advdiff.F,
445      but: - conserving Mass, Heat & Salt.
446           - better when using non-linear advection scheme (not yet fully tested)
447           - can also be used in atmospheric set-up (for now, only the diffusion).
448    
449    checkpoint58x_post
450    o IO option for global-file compact format:
451      - add options when generating topology (utils/exch2/matlab-topology-generator)
452      - add I/O capability (pkg/mdsio).
453      - adapt utils/matlab/rdmds.m to read this format.
454      for now long-line format not yet supported by pkg/mdsio (& exch2).
455    o shelfice: add a few diagnostics
456    
457    checkpoint58w_post
458    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
459      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
460      (and replace horiVertRatio in NH code).
461      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
462                         and tutorial_plume_on_slope (sensitive to truncation)
463    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
464      directly to drive seaice model (C-grid only)
465    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
466     - reintroduce computation of wind from stress,
467     - compute tau (in exf_bulkformulae.F) from windstress averaged to
468       mass points to avoid tau = 0
469     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
470    o rdmnc.m: make it work with "global" files created with gluemnc
471    o rdmnc.m : some improvements in dealing with singleton dimension
472      (tested on all testreport mnc output files).
473    o genmake2: disable pkg/profiles if netcdf test fails.
474    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
475    o move call to cal_readparms up to make calendar parameters/variable available
476      to all packages
477    
478    checkpoint58v_post
479    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
480      useDynP_inEos_Zc tested.
481    o pkg/exf: changes to properly interpolate/mask/scale initial fields
482    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
483      and portions thereof.  See read_cs.txt for description and examples.
484    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
485      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
486      following the great-circle arc between those 2 points.
487    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
488      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
489    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
490     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
491     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
492     - still needs work (not working with some options ; efficiency to improve)
493       and serious testing.
494     - use this scheme for temperature & salinity in 2 advection test exp.:
495       advect_xy & advect_xz, respectively.
496    
497    checkpoint58u_post
498    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
499    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
500    o testreport: add option "-skipdir" to skip some test.
501    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
502      momentum calculation.
503    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
504    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
505      remove checkpoint.F and the_correction_step.F (no longer used);
506      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
507    o add option (linFSConserveTr) to correct for tracer source/sink due to
508      Linear Free surface
509    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
510    o pkg/thsice: fix reading mnc-pickups
511    
512    checkpoint58t_post
513    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
514    o pkg/mdsio:
515     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
516       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
517       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
518     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
519     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
520       either MDS_READ_FIELD or MDS_WRITE_FIELD )
521     - new S/R (to replace MDSWRITEMETA), which allows to write more
522       informations (variable names, time ...) to meta files.
523     - modify rdmds.m to give back the meta file content.
524    o pkg/diagnostics: change vertical interpolation to be safer, and more
525       flexible (define p-levels to interpolate to in data.diagnostics);
526      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
527       diagnostic pointer.
528    o pkg/seaice: more cleaning up of seaice_growth, added many comments
529    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
530    o fix multi-category seaice:
531     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
532       SEAICE_MULTICATEGORY
533     - fix short wave heat flux
534    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
535       and allow to use EVP solver. Change forward lab_sea: test both EVP
536       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
537    o Initial check-in of lab_sea adjoint
538      (very similar to natl_box_adjoint/code_seaice)
539      * used C-grid and EVP solver
540      * used KPP, GM/Redi
541      * uses inAdExact=.TRUE.
542      * gradient checks fail for both ADM and TLM
543        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
544        f.d. gradients actually seem more problematic than ADM, TLM gradients;
545        issue is related to forward mismatch between g77 an ifort
546    o pkg/seaice: overhaul of thermodynamics
547     - growth.F and groatb.F are replaced by new routine seaice_growth.F
548     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
549     - move a few global fields out of SEAICE.h into seaice_growth.F and
550       make them 2D (FICE/QNETO/ ...)
551     - remove FO (it is the same as QNETO)
552     - introduce a few local fields to avoid modifying external fields such
553       as atemp, etc.
554    
555    checkpoint58s_post
556    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
557      changed exf_set_gen.F so that
558        genperiod=0 means input file is one time-constant field and
559        genperiod=-12 means input file contains 12 monthly means
560    o CG2D: use pre-computed solver main-diagonal (stored in common block);
561      this affects truncation error ; generate new output file for exp. which
562      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
563        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
564        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
565        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
566        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
567        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
568    o start implementation of deep-atmosphere and anelastic formulation
569    o verification: remove 2nd copy of input files and use script "prepare_run"
570      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
571    o mom_common/vecinv/fluxform: fix a few initialisation isssues
572    o profiles: fix for multithreaded case
573    
574    o diagnostics: rename few diags:
575      s/'PRESSURE'/'RCENTER '/g
576      s/'TICE    '/'oceFreez'/g
577      s/'TAUX    '/'oceTAUX '/g
578      s/'TAUY    '/'oceTAUY '/g
579      s/'SWFLUX  '/'oceQsw  '/g
580      s/DIFx/DFxE/g
581      s/DIFy/DFyE/g
582      and add few ocean-forcing diagnostics:
583      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
584    o modifications to pkg/seaice/growth.F and budget.F, which change results of
585      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
586      as actual snow thickness.  It now refers everywhere to effective snow
587      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
588    
589    checkpoint58r_post
590    o modifications to pkg/seaice/growth.F, which change results of
591      lab_sea experiment: fixes pertain to melting snow over open water, to
592      masking EVAP under sea ice, and to using the correct AREA variable for
593      computations of EVAP, PRECIP, HSNOW, and GHEFF
594    o add ability to read bathy, salt, and theta using MNC (off by def)
595    o add flooding algorithm and advection of HSNOW for pkg/seaice;
596      both are turned off by default and do no change any results
597    o seaice advection with pkg/thsice: a step toward the use of non-linear
598      advection scheme, but #ifdef or commented out for now (requires more EXCH).
599    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
600      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
601      in natl_box (affects results @ truncation level: update output.txt)
602    o multi-threading and IO:
603      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
604      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
605        (needed to work with SingleCpuIO): tested in all verif. exp.
606    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
607      affects the results (but none of the verification test uses this scheme).
608    o Adding some pkg/diagnostics capability to pkg/seaice
609      (will certainly be subject to changes)
610    o ctrl: adding new control variables:
611      lwflux, lwdown, evap, snowprecip, apressure, runoff
612    
613    checkpoint58q_post
614    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
615      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
616      high_res_cube configuration by 4% on Columbia.
617    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
618      add (in global_with_exf/code) a version of EXF_INTERP_READ without
619      dynamical allocation (seems to work in multi-threaded).
620    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
621      single CPU io) so that TAF does not have to see EESUPPORT.h
622    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
623    
624    checkpoint58p_post
625    o obcs: stop if obcs is used with useCDscheme = .true.
626    o shelfice:
627     - fix a sign error so that no slip at shelfice interface works
628     - remove stop for combination non-hydrostatic code and shelfice. That does
629       not mean, that the results are correct, but at least they are numerically
630       stable
631    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
632    o added adjoint exch routined for all exch*3d* routines
633      and updated flow directives
634    
635    checkpoint58o_post
636    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
637      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
638    o change controling S/R for writing pickup file (new S/R do_write_pickup)
639      and clean-up reading/writing of pickup files.
640    o fix local version of read/write pickup (NH part) in rotating_tank/code
641    o simplify EXCH interface:
642     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
643     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
644    o added the regrid package
645    o shelfice:
646     - add a simple boundary layer scheme to reduce noise
647     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
648    
649    checkpoint58n_post
650    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
651       local variable (not in common block).
652    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
653      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
654      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
655        to work with SingleCpuIO.
656    o add "_d 0" to real constant of pkg/cfc subroutines ;
657       update exp. cfc_exemple & tutorial_cfc_offline output files.
658    o multi-threading and IO:
659      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
660        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
661      - barrier before and after reading.
662      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
663      - avoid using MDS_WRITELOCAL for LAND pkg output.
664      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
665        common-block variables ; Allows multi-threading with master-thread IO.
666    o change default MAX_NO_THREADS from 32 to 4 ;
667      and stop cleanly when MAX_NO_THREADS is too small.
668    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
669    
670    checkpoint58m_post
671    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
672       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
673    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
674       keep global_ocean.90x40x15 (for AD testing) with former secondary test
675       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
676    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
677        add MITgcm_tutorials (= code + all the tutorials)
678    o ecco, option to compute cost for total ssh (mean+anom)
679    o consistent with addition of ptracer and ssh in pkg/profiles
680    o profiles: adding ptracer and ssh
681    o testreport: change multi-test output-file name
682      (from output.txt.{name} to output.{name}.txt)
683    o profiles: now ok for mutli-tiles case
684    o seaice: add 4 parameters for different advection schemes for area,
685      (effective) seaice thickness, enthalphy, and snow height. Their default
686      is the standard parameter SEAICEadvScheme
687    o calc_gw:
688     - add cosFacU in zonal viscous flux (harmonic.visc.).
689     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
690       of tutorial_plume_on_slope.
691    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
692    o calc_gw: true flux-form, account for horizontal grid spacing.
693      update rotating_tank results, but not plume_on_slope (affected at
694      truncation level, 11 digits).
695    
696    checkpoint58l_post
697    o calc_gw:
698     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
699     - remove side-drag for now (need to fix it); update plume_on_slope results.
700     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
701    o commit code to make SST/SSS weights spatially variable
702      (based on either variable in-situ or variable initial T/S weights)
703    o pkg/ecco:
704      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
705        now based on horizontally varying weights wthetaLev, wsaltLev
706      * cost_averagesflags now returns year indices in addition to day, month
707      * sflux balance is performed on annual basis
708        (sflxumm, sfluxmm2, bal_sfluxmm)
709      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
710        including separate counting and multipliers
711    o pkg/rbcs
712      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
713    
714    checkpoint58k_post
715    o testreport:
716     - always build in dir. "build" (if not there, mkdir build instead of building
717       & running in input)
718     - run in dir run (if it exists), in build otherwise.
719     - call prepare_run (if input/prepare_run exists)
720     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
721    o pkg/exf modifications to interpolation and rotation routines for more
722       reasonable treatment of North Pole singularity: for tracers North Pole
723       value is set to northernmost zonal-mean value, for zonal velocity it is
724       set to zero, and for meridional velocity it is set to northernmost value.
725    o pkg/exf/exf_check_range.F
726     - add tile index to diagnostics and move stop statement to the very
727       end of the routine.
728    o pkg/diagnostics: (diagnostics_main_init.F)
729      define title of isomorphic variables according to the current config.
730    o pkg/thsice with pkg/seaice dynamics:
731    - fix domain of computation (interior only, required for exf) and do exchanges
732    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
733    o towards a standard way of dealing with multi-threading in MONITOR
734      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
735    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
736       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
737    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
738    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
739    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
740       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
741    o tracer advection:
742     - clean-up and simplify calc_common_factors.F
743     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
744       advection subroutine (but still not used within DST advection S/R)
745    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
746    
747    checkpoint58j_post
748    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
749      from file (collects calls previously in FORWARD_STEP)
750    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
751    o adjoint store dir. adjusted accordingly
752    o genmake2
753      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
754    
755    checkpoint58i_post
756    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
757      on wind stress (SEAICEstressFactor defaults to 1.)
758    o Total number of Timers is finite (<=40): comment out 2 non-essential one
759      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
760    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
761      on CS-grid: no longer loosing mass.
762    o exf & curvilinear-grid: no longer modify longitude xC & xG.
763    o pkg/ggl90: fix sloppy output and fix a bug
764    o pkg/seaice: added SEAICEuseEVPpickup parameter
765      - Set to false in order to start EVP solver with
766        non-EVP pickup files when using SEAICEuseEVP
767      - fix sign error in diffusion in seaice_calc_rhs
768    
769    checkpoint58h_post
770    * Modifications for bottom topography control
771      o replace hFacC by _hFacC at various places
772      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
773      o add non-self-adjoint cg2d_nsa
774      o update autodiff support routines
775      o re-initialise hfac after ctrl_depth_ini
776      o works for 5x5 box, doesnt work for global_ocean.90x40x15
777    * Adding verification for 5x5 box (4-layer) bottom topography control
778    
779    checkpoint58g_post
780    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
781       used for mean seasonal cycle, mean diurnal cycle); add an example
782       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
783    o pkg/ggl90:
784      - add parameter (minimum surface kinetic energy)
785      - fix bug (avoiding division by zero)
786    o couple pkg/thsice to pkg/seaice:
787      - modify advection in seaice to accomodate new scalar fields to be advected
788      - only muliDimAdection scheme work with seaice/thsice
789      - mapping of thsice-variables to seaice-variables, back and forth
790      - does not break the verification experiments, but does not give the
791        desired results either
792    o pkg/seaice
793      - make (default) second order advection a bit less confusing?
794    
795    checkpoint58f_post
796    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
797      to pkg/seaice):
798      - new routines thsice_map_exf and thsice_get_exf provide the interface
799      - add an additional formal parameter to thsice_solve4temp
800    o pkg/exf:
801      - add new fields wspeed, snowprecip (to be able to couple to thsice)
802      - correct Stefan-Boltzmann constant
803      - new parameter for longwave surface emittance
804      - separate some stuff from exf_bulkformulae into new routines  
805        exf_radiation, exf_wind
806      - add new parameters and constants: longwave emissivity for ocean, ice
807        and snow, evaporation parameters over ice
808      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
809        either wind from stress or stress from wind
810    o pkg/thSIce:
811    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
812    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
813       and THSICE_CALC_THICKN
814    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
815    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
816      to make debugging easier.
817    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
818    o pkg/bulk_force:
819      - clean-up comments and parameters ;
820      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
821    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
822      generate new output for test-experiment: aim.5l_cs.thSI
823    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
824      testreport accordingly
825    
826    checkpoint58e_post
827    o SEAICE_CGRID adjoint done
828    o R_STAR adjoint implemented.
829      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
830      * need to sort out init. of h0facc, etc.
831    o Make pkg/profile fully independent of ecco,cost, etc. stuff
832      to be able to use it in pure forward.
833    
834    checkpoint58d_post
835    o upgrade simple test-experiment to tutorial example:
836     step.1: duplicate the experiment and (step.2) will remove the old copy.
837      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
838      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
839      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
840      tutorial_global_oce_biogeo    <- copy of dic_example
841      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
842      tutorial_plume_on_slope       <- copy of plume_on_slope
843      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
844      tutorial_global_oce_optim     <- empty for now (David ?)
845      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
846     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
847    o correct a sign problem in cost_scat.F
848    o obcs and ptracers: fix boundary conditions for advections schemes
849      with larger stencil
850    o thsice adjoint: start
851    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
852      completeness
853    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
854      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
855    o ptracers adjoint:
856      * avoid extensive recomputatations
857      * fix missing re-init. of gptr (missed by TAF)
858    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
859      me to turn off the excessive output to STDOUT that this package produces
860    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
861      and add those terms in Vector-Invariant formulation.
862    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
863      if the control period (xx_hfluxperiod etc) is 0
864    o in profiles pkg, clean routines and fix details
865    o in ecco pkg, reading ssh data:
866      fix problem in case the model does not start at iter0=0
867    o fix mnc-pickup/restart for ptracers
868    o new package prifiles:
869      code to compute profile-based cost by Gael Forget
870      (modifs in ecco, ctrl, autodiff)
871    o Benign bug fix in initialization (spotted by M. Mazloff) of
872      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
873    
874    checkpoint58c_post
875    o adjoint: finish NLFS adjoint and provide reference output in
876      verification/global_ocean.90x40x15/results_ad_nlfs
877    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
878      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
879      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
880      with SEAICE_CGRID defined.
881    o move calendarDumps from "data" to "data.cal" and clean-up the code
882      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
883    o add useEXF & useCAL flags (for now, set in hard-coded way)
884    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
885      (were missing in NH mode, and wrong in quasihydrostatic mode).
886      waiting for Chris updated version of calc_gw to add those CALLs.
887    o fix bug in quasihydrostatic S/R ;
888      add a test for this option: global_ocean.90x40x15.qshyd
889    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
890      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
891    o add on/off flag useOffLine for package OFFLINE
892    o seaice:
893      - modify advection so that it works also on the C-grid
894      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
895        problem in multi-tile runs with C-grid
896      - add flags for clipping ice velocities and/or masking solver forcing
897      - fix drag (ocean on ice) formulation and a bug that caused noise in the
898        C-grid solver
899      - added a few comments to seaice_diffusion.F
900      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
901        are now exclusive)
902      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
903        required re-ordering the code a little:
904       + make DAIRN global variable (defined in SEAICE)
905       + move computation of the viscosities eta and zeta into a new separate
906         routine (because I need to recompute them in seaice_ocean_stress.F)
907    
908    checkpoint58b_post
909    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
910      update output.txt of exp. aim.5l_cs.thSI
911    o various mnc cleanups and improvements:
912      + shrink lookup tables by factor of ~4
913      + better error reporting when running out of lookup space
914      + able to handle longer path/file names (up to 500 chars)
915    o adjoint:
916      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
917      - TBD: "hidden" mom_vecinv recomp. in dynamics
918    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
919     (allow to differentiate between forcing components using new integer flags:
920      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
921     and add new flag to put Dissipation tendency out of Adams-Bashforth.
922    o ecco
923      - enable trend removal from SSH anomaly obs.
924    o adjoint
925      - a fix for PmEpR when #undef EXACT_CONSERV
926      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
927      - try to fix "hidden" recomp. in forward_step for NLFS
928        (NLFS seems broken sometimes after I checked it in)
929    o seaice:
930     - add c-grid version of the dynamic solver:
931       + three new routines that are the c-grid substitute lsr, dynsolver
932         and ostres
933       + put a few fields that were local to dynsolver into global common
934         blocks, so that I can move the computation of stresses etc into
935         seaice_lsr (saves coding but may break the adjoint).
936     - replace more hardwired parameters by runtime parameters
937     - add ice masks that mask the rhs of the implicit solvers where there
938       is no ice (commented out in seaice_dynsolver, because i am not sure
939       if this works properly), eventually this should replace the clipping
940       of ice velocities in seaice_dynsolver to +/-40cm/s.
941    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
942      include it only where its needed
943    o move balancing of fluxes before the call of external_forcing_surf
944    o seaice:
945      - correct units of turning angles (now they are really in degrees)
946      - move computation of GWATX/Y out of main routine into dynsolver
947      - initialize GWATX/Y in seaice_init
948    o Apply mask on Fresh-Water flux (needed for SSH forcing).
949      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
950    o seaice: add runtime flags for turning angles (default to zero)
951    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
952      and trend from exf forcing and ctrl control adjustments
953    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
954      (since checkpoint57x_post)
955    o change the default rotation period to 86164.s = the Earth rotation
956    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
957      and based on a reference stratification. Tested within hs94.cs-32x32x5.
958    o seaice advection: add code for choosing between the default (2nd order
959      central differences) and multiDim advection schemes provided by
960      pkg/generic_advdiff
961    o seaice:
962      - removed all references to SEAICE_GRID.h fields from
963        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
964        (cubed-sphere configuration will change a little)
965      - grid computations in seaice_init are obsolete now.
966      - cleaned up code a little so that is easier to read (hopefully).
967      - added new (better?) discretizations of default advection and diffusion
968        (turn on with SEAICEuseFluxForm)
969      - replace 1 in 3d global fields by kSurface in growth.F
970      
971    checkpoint58a_post
972    o seaice:
973      - bug fix in advect.F
974    o shelfice:
975      - separate shelfice load anomaly from pload (breaks with time
976        dependent forcing), => introduce constant field shelficeLoadAnomaly.
977        Its default is 0., but it may be computed more cleverly from (unknown)
978        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
979        done offline. A good approximation of the pressure load anomaly is
980        necessary to avoid large initial adjustment processes underneath
981        deep-reaching shelfice.
982      - small fix in ISOMIP shelfice_thermodynamics
983      - add more sophisticated thermodynamics of Hellmer (1989), this is
984        now the default
985      - give a few constants more intuitive names
986    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
987      if bulk formulae are used in long integration (especially EmPmR). Turn
988      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
989      if balancePrintMean, the imbalance that is substracted is printed to
990      STDOUT.
991    o fix bug (typo) in obcs_apply_eta.F
992    o add a new package shelfice which enables us to model the circulation
993      underneath shelf-ice with draughts of hundreds of meters.
994     - works
995     - to do: + include improved thermodynamics
996              + check whether kSurfC (from model/inc/SURFACE.h) can be used
997                instead of new field kTopC
998              + can we use topoFile, Ro_surf and existing code in ini_depth.F
999                instead of new field R_shelfIce and new code in ini_depth.F
1000                and ini_mask_etc.F?
1001              + adjust vertical mixing schemes?
1002    o seaice pkg:
1003     - add a cpp-flag to include a simple formula for a salinity dependent
1004       freezing point of sea water at the surface
1005     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1006       meridional stresses are now different (and hopefully correct)
1007    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1008       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1009       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1010    o pkg/diagnostics: add options and parameters for regional-statistics
1011       diagnostics ; define regions by reading a region-mask from a file
1012       (might add other options later)
1013    o pkg/bulk_force:
1014     - add option and parameters to use AIM surface-flux formulae.
1015     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1016       others forcing fields (defined in PARM05, parameter file "data") are loaded
1017       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1018     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1019     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1020     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1021       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1022     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1023    
1024    checkpoint58
1025    o add "--embed-source" option to genmake2 which, when the supporting
1026      tools can be compiled (as determined by genmake2) will turn on the
1027      embed_files package which then embeds the entire MITgcm source code
1028      (*.[fFhc] + Makefile) used for the build within the executable
1029      - requested by CNH but off by default
1030      - adds a paltry <9MB to the mitgcmuv executable in most cases
1031      - only writes the output when useEMBEDSRC in eedata is true
1032    o clean up 3-dim. relaxation codes:
1033      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1034      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1035      * Thanks to Tom Haine for testing!
1036    
1037    checkpoint57z_post
1038    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1039      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1040    o fix the pickup behavior for obcs in combination with ptracers
1041    o fix a bug in ptracers_external_fields_load
1042    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1043      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1044    o transfered surface NH pressure to eta field (if exactConserv).
1045    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1046         and update lab_sea output.txt file.
1047    o completing 3-dim. relaxation code: additional term
1048         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1049      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1050      * At compile time, in "EXF_OPTIONS.h" set
1051          #define  ALLOW_CLIMTEMP_RELAXATION
1052          #define  ALLOW_CLIMSALT_RELAXATION
1053      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1054          tauThetaClimRelax3Dim = 15552000.0,
1055          tauSaltClimRelax3Dim  = 15552000.0,
1056      * 3 cases:
1057          1) Use a constant-in-time 3-dim. field
1058          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1059          3) Real-time relax. to time-evolving prescribed field
1060    o Adding Laplacian-type smoothness constraint on
1061      initial and boundary (forcing) controls (ic, bc)
1062      * enable at compile-time via
1063        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1064      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1065      * Absolute scale somewhat unclear so far
1066      * no area weighting was included since no other cost term does so far
1067    
1068    checkpoint57y_post
1069    First step for a NLFS adjoint
1070    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1071    o new init. routines for calc_r_star, calc_surf_dr
1072    o still need to deal with ini_masks_etc
1073    o testreport seemed happy
1074    checkpoint57y_pre
1075    
1076    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1077    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1078    o add new offset feature to offline pkg (plus minor cleanup)
1079    o cfc fixes for final year of integration
1080    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1081      be in GCHEM_OPTIONS).
1082    
1083    checkpoint57x_post
1084    o fix testreport Pb in multiple test experiment.
1085    o cleanup our namelist syntax in verification:
1086      - make it more F95 standards compliant (some work still needed)
1087      - allows the vast majority of our tests to work with gfortran
1088    o Non-Hydrostatic:
1089     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1090     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1091    o Allow to apply AB on T,S rather than on AB(gT,gS):
1092     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1093     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1094       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1095     - need a "clever" read_pickup to restart from the other AB formulation
1096    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1097    o remove some unused variables (reduces number of compiler warnings)
1098    o adjoint
1099      * Disable useVariableViscosity for adjoint for time being
1100        (there are a number of extensive recomputations)
1101      * Initialize certain variables needed for adjoint
1102    
1103    checkpoint57w_post
1104    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1105                 fix the singleCpuIO RS version of MDSWRITEFIELD
1106       and add a WARNING if using globalFiles=T with multi-processors.
1107    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1108      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1109    o tracer advection scheme:
1110      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1111       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1112       was not very convenient).
1113      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1114       (further tests needed for the implicit DST & Flux-Limiter schemes).
1115    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1116      and sRef for convenience, handy, when you want to initialize
1117      ptracers in a large domain with a constant non-zero value. Also,
1118      untangle ptracers_init.F a little.
1119    
1120    checkpoint57v_post
1121    o change dome exp. to use variable viscosity in side-drag terms.
1122    o remove all the files from the cfc_offline test since they are now
1123      incorporated into tutorial_cfc_offline which has been producing
1124      identical results for a few days of testing
1125    o add new parameter: sideDragFactor to enable half-slip-side BC
1126      and change side-drag S/R to use viscosity from mom_calc_visc
1127      (can switch back by setting sideDragFactor=0.); affects results at
1128      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1129       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1130    o vorticity & strain are now computed without masking, to account for
1131      no-slip-side BC in variable viscosity calculation ; mask is applied
1132      anyway later on, before computing advection/coriolis terms.
1133    o modify exp4 to test new obcs support for reading from external files
1134      and for passive tracers
1135    o fix behavior of ptracers_monitor when monitor output is written to a
1136      netcdf-file; still not independent of monitor.F (writes in the same
1137      file).
1138    o change default value of tRef (put a uniform, meaningful value for ocean
1139      & atmos) and initialize sRef (was missing, as Martin mentioned).
1140    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1141      to be proportional to enstrophy dissipation length.  Thus,
1142       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1143      This is now consistent with Smagorinsky and with the manual.
1144    
1145    checkpoint57u_post
1146    o OBCS and PTRACERS: add open boundary support for passive tracers
1147      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1148        OB-values from file; this is not different from the way theta and salinity
1149        are treated
1150      - however, Orlanski-radiation conditions are not supported, and the model
1151        will stop if you use pTracers and Orlanski at the same time.
1152      - beefed up the rountine obcs_external_fields_load: now only those open
1153        boundary values are overwritten with values from files for which there
1154        are really files, otherwise the OB-fields remain untouched. This makes
1155        it possible to use different OBs at different ends of the domain (as
1156        with EXF)
1157    o reduce number of exch calls in shap_filt (s2).
1158    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1159      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1160    
1161    checkpoint57t_post
1162    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1163    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1164      same truncation, independent of the face number: affects affects several
1165      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1166    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1167      note that biharmonic viscosity + no-slip was not tested in any experiment.
1168    o fix bug in non-linear free-surf side-drag ; generate new output for
1169      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1170    o make mnc honor the writeBinaryPrec flag for most kinds of output
1171    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1172    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1173      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1174    o add brackets in multi-terms sum to get same truncation, independent of
1175      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1176      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1177    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1178      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1179      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1180      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1181      Suggested values of viscosity parameters found in mom_calc_visc.
1182      Many new viscosity diagnostics available.
1183    
1184    checkpoint57s_post
1185    o Add clearing-house for viscosity calculations, mom_calc_visc and
1186      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1187      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1188      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1189      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1190      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1191      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1192      ViscAhStrain and viscAhTension are now retired.
1193    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1194    o In response to JMC's bug report, genmake2 now ignores any soft-links
1195      that it finds in the *current* directory when searching for files.
1196      Soft-links found in any other source directories will still work as
1197      they did before.
1198    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1199      a C routine to unlimit the stack size
1200    o mnc-ify pkg/aim snapshot vars
1201    o mnc-ify pkg/land as requested by Daniel
1202    o various changes to mnc including:
1203      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1204      - output can now be grouped so that all files within a group
1205          change the ITER portion of their names in lock-step together
1206      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1207          and works with both EXCH1 and EXCH2 (but needs more testing)
1208      - writing works for all verification test cases w/ g77 on Linux
1209    
1210    checkpoint57r_post
1211    o make MNC variable initialization happen earlier
1212    o add diagnostics for (almost) each term of the momentum Eq.
1213    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1214    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1215    o remove MINIMAL_TAVE_OUTPUT option ;
1216      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1217    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1218      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1219    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1220    o add time-dependent SST, SSS control
1221    o cost terms in ecco/ modularized (new cost_generic.F)
1222    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1223    o new infrastructure for seaice model vs. obs misfits in seaice/
1224      * driver from the_main_loop.F is seaice_cost_driver.F
1225      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1226      * gradient check in Exp. 6a of natl_box_adjoint/
1227    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1228      (see README file)
1229    
1230    checkpoint57q_post
1231    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1232    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1233      - bug was reported by Jean-Michel and Ian Fenty
1234    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1235      update exp. cpl_aim+ocn output.
1236    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1237      Needed for high-res. runs with large global files
1238      to be able to limit tapelev size
1239    o Changed some tests for adjoint:
1240      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1241      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1242      * global_ocean.90x40x15/ back to default 3-level checkpointing
1243    o Modifications to enable scripted COMMON to MODULE conversion
1244      * verification/OpenAD/code/ has necessary scripts and description;
1245      * converts, compiles and runs successfully;
1246    
1247    checkpoint57p_post
1248    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1249    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1250      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1251    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1252    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1253      (was already the case for dissipation with mom_vecinv,
1254       and also the case for grad.PhiHyd when staggered-timeStep)
1255      This will allow to put dissipation out-off the AB time-stepping.
1256     Unfortunately, affects truncation error. Update output of exp. that "fails"
1257      (cg2d matching number) and leave the others for later: front_relax(10),
1258      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1259      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1260    
1261    checkpoint57o_post
1262    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1263      (2) its ready to be documented during the 20050801 DocFest
1264    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1265      for ideal_2D_oce and lab_sea on linux_ia32_g77
1266    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1267      in global1x1_tot/code_seaice_adj to access indices 32, 33
1268      (worth another tag)
1269    
1270    checkpoint57n_post
1271    o adding precip control xx_precip 32
1272    o adding swflux control xx_swflux 33
1273    o Replacing 10 forcing penalty cost routines by 1 generic.
1274    o Implementing partitioning in time-mean and variable adjustment
1275      for atmos. state.
1276    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1277    o in natl_box_adjoint:
1278      * updated exp 1 to 10
1279        (but does not have time-mean vs. variable split results yet)
1280    o updated global1x1/*_seaice_adj/
1281      to incorporate latest changes
1282    o enable useSingleCpuIO for mdsio vector routines
1283      (applies in particular to tapelev I/O)
1284    o removed inefficient K-loop in all active_file*control*.F
1285    
1286    checkpoint57m_post
1287    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1288      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1289    o pkg/exch2: filling of face-corner halo regions is optional
1290      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1291    
1292    checkpoint57l_post
1293     tag before updating tutorials (pre-release-2)
1294    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1295       for output and interpolation of input fields onto model grid)
1296    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1297       Affects results of exp. rotating_tank ; update output.txt.
1298    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1299          and taking the square quantity and/or using a fraction-weight field.
1300    o fix aim_diagnostics_init.F mate numbers.
1301    o add mnc output capability to diagnostics/diagstat and update
1302      our cvsignore files for the ACSII output generated
1303    
1304    checkpoint57k_post
1305    o lab_sea now uses diagnostics package and provides a suite of
1306      new EXF diagnostics output.
1307    
1308    checkpoint57j_post
1309    o exf
1310      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1311        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1312        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1313      * extended diagnostics output
1314        - now includes all EXF variables
1315        - hs, hl moved to common block
1316        - separate S/R for diagnostics, called after ctrl vector is added
1317        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1318        - EXFqnet contains true Qnet (i.e. includes qsw)
1319      * updated verif. lab_sea, global_with_exf
1320      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1321        to ensure that diagnostics sees a true EXFqnet
1322    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1323    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1324      several times with different frequencies.
1325    o mnc-ify the thsice package as requested by Daniel Enderton
1326      - the monitor--MNC output needs work
1327      - many attributes need to be added (most are currently blank)
1328    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1329      - many attributes need to be added (most are currently blank)
1330    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1331    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1332    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1333      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1334         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1335    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1336     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1337    
1338    checkpoint57i_post
1339    o Diagnostics package was changed: diagnostic allocation is now deactivated
1340      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1341    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1342      add 1rst Order upwind vertical Shear.
1343    o add a quick fix for A/B checkpointing in OFFLINE mode
1344    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1345      end-run around the C/Fortran linking horror in eesup/src/timers.F
1346    o added pkg/runclock: allows user to terminate run based on wall clock
1347    o added non-hydrostatic scaling parameter: nh_am2
1348    o pkg/my82: futile attempt to make results compiler-independent by adding
1349      some "_d 0", etc. no effect.
1350    o for mnc output, fill the 'T' coordinate var with myTime and create a
1351      separate 'iter' variable for iteration count
1352    o pkg/diagnostics:
1353      add new capability: output of Global/Regional & per-level statistics ;
1354      tested against monitor output (including land & thSIce) on various exp.
1355    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1356    
1357    checkpoint57h_done
1358      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1359      data.diagnostics, data.gchem, data.ptracers) is done.
1360    
1361    o pkg/diagnostics: prepare for Global/Regional statistics.
1362      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1363    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1364      and rename it: DIFFERENT_MULTIPLE
1365    
1366    checkpoint57h_post
1367    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1368    o pkg/diagnostics: change output frequency, now in seconds (instead
1369      of Nb of iterations). This requires to change data.diagnostics.
1370    checkpoint57h_pre
1371    
1372    o in mnc, let the user create the output dir if both mnc_outdir_date
1373      and mnc_outdir_num are false
1374    o add fflags() to pkg/diagnostics which allows one to specify, on a
1375      per-file basis, the file precision [default behavior is unchanged]
1376    o added diagnostics to pkg/kpp, including computation of mixed layer
1377      depth based on a temperature/density criterion
1378    o updated verification/natl_box to test the new pkg/kpp diagnostics
1379    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1380    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1381    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1382      not mnc -- this mistake was found by JMC and is now corrected
1383    
1384    checkpoint57g_post
1385    o add Adams-Bashforth 3rd Order time stepping:
1386      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1387      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1388    checkpoint57g_pre
1389    
1390    o make lambda[Theta,Salt]ClimRelax spatially varying
1391      (default remains spatially uniform constant based on tau)
1392    o added new control variables
1393      * init. uVel, vVel, etanN
1394      * lambda[Theta,Salt]ClimRelax
1395    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1396      (suggested by G. Forget)
1397    
1398    checkpoint57f_post
1399    o add parameter "baseTime" = model base time = time at iteration zero
1400      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1401      account for baseTime shift
1402    o move Coriolis arrays from PARAMS.h to GRID.h
1403    checkpoint57f_pre
1404    
1405    o mnc-ifying the seaice package
1406    o introduced an alternative length scale calculation for use in the limiting
1407      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1408    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1409    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1410      as well as grad(vort3).  Made it compatible with both approximate form
1411      for the cubed sphere and full form of these gradients.  Added flag
1412      useFullLeith to select between approximate and full form.  
1413    o add "d0" in getcon.F to reduce differences between compilers/platforms
1414      update output.txt of exp. fizhi-gridalt-hs
1415    o change port_rand funtion to allow to set the seed.
1416    o fix obscure MNC bug involving conversion between reals and integers
1417      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1418        new version is now more standards-compliant
1419    o adjoint-related modifications
1420      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1421      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1422      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1423    
1424    checkpoint57e_post
1425    o Adding eddy stress controls a la Ferreira et al.
1426    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1427    
1428    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1429      update output.txt of exp. fizhi-gridalt-hs
1430    o add more "Z" dimensions and associated coordinate vars to MNC
1431    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1432    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1433      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1434      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1435      months and years.  Requires pkg/cal.
1436    o diagnostics: add pickup functionality
1437      - off by default for backwards compatibility
1438      - current version only uses MDSIO -- MNC will be added
1439    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1440    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1441    
1442    checkpoint57d_post
1443    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1444    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1445      output from the diagnostics package
1446    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1447    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1448      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1449    o add coordinate variables to the MNC output from the diagnostics package
1450    o change MNC-flags default value: true when useMNC=TRUE
1451    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1452      the ability (off by default) to read the grid information using MNC
1453    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1454    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1455    o do snap-shot diagnostics at the middle of the time-interval (instead of
1456      at the end).
1457    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1458      new test for AIM with thSIce + slab-ocean
1459    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1460    o move state variable diagnostics to the beginning of the time step ;
1461      (note: still needs some work specially for snap-shot diagnostics)
1462      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1463    
1464    checkpoint57c_post
1465    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1466    o generate new output.txt files on faulks with g77 & the new -ieee option
1467    checkpoint57c_pre
1468    
1469    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1470      update output.txt of exp. global_ocean.90x40x15
1471    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1472      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1473    o add saltFlux(+File) forcing capability with periodicExternalForcing
1474    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1475    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1476    o improvements for the MNC output from DIAGNOSTICS:
1477      - correct handling of the unlimitied dimension
1478      - all dims now have associated coordinate variables
1479      - variables located at U, V, and Corner ("Z") points are now written
1480        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1481        *all* data points are output
1482    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1483    o added pkg/seaice/seaice_monitor.F
1484    o mdsio_readfield.F can now read files visible only to master MPI process.
1485    o pkg/seaice: some test code for ice-modified ocean stress
1486    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1487      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1488      spurious negative numbers for precipitation and humidity.  Will cause
1489      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1490    o pkg/ctrl/
1491      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1492        May be enabled via doPackDiag
1493      *  introduce z-scaling of
1494         + gradient (doZscalePack) and
1495         + control (doZscaleUnpack)
1496    o pkg/mdsio/
1497      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1498      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1499    
1500    checkpoint57b_post
1501    o simplify options in diagnostics_fill arguments (remove weird combinations)
1502    o fix MNC coordinate variables so that they now contain per-face index
1503      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1504      general, EXCH2 grids are only aligned to a "local" coordinate system
1505    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1506    o Implement instantaneous output within pkg diagnostics:
1507      setting a negative frequency in data.diagnostics produces
1508     "snap-shot" output (as opposed to time-average if freq > 0)
1509    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1510      NOTE: change ptracer diagnostics name: use 2 characters to work with
1511            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1512    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1513      becomes the coordinate variable for the 'T' dimension
1514    o add CF-style coordinate variables to MNC
1515      - just a first cut:  numbers are meaningless on the cubesphere and
1516        missing along the T axis but otherwise it works!
1517    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1518    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1519    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1520      this is based directly on what the model compute, so that the content of
1521      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1522    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1523    o clean up build options files for SunOS, in particular
1524      - remove -traditional from xmakedepend
1525      - change -xarch=v9 to -xarch=native for f77
1526      - restore use of make (not gmake)
1527      - add CC=gcc if using g77
1528    o changes per discussion of AM, JMC, & EH3 today:
1529      - move redundant "grid" variables out of "state" -- in preparation of
1530        creating proper CF-style coordinate variables and in recognition
1531        that any/all grid variables can be easily copied (eg. w/NCO) from
1532        the grid files into any of the other NetCDF files
1533      - *always* output grid variables with MDSIO (this will eventually be
1534        changed)
1535      - output MNC grid file if useMNC is true
1536    o every instance of _END_MASTER() has been found and replaced with
1537      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1538      preprocessors
1539    o re-arrange diagnostics pkg initialisation:
1540     - allow each package to extend the available diagnostics list
1541     - add some checking and fix small problems (multi-threaded, ...)
1542     - new S/R diagnostics_fill (replace fill_diagnostics):
1543       look through the short list of active diag. (instead of the long list)
1544       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1545    
1546    checkpoint57a_post
1547    o this set of changes restores TAMC compatibility
1548      tested for global_ocean.90x40x15 adjoint on trough
1549      (what a pain)
1550    
1551    checkpoint57a_pre
1552    o some modifs in tools/build_options for sunos
1553    o call ctrl_pack for ctrl at end for optimcycle=0
1554    
1555    checkpoint57
1556    o add horizontal bi-harmonic viscosity for vertical velocity
1557      - new parameter viscA4W (defaults to viscA4)
1558      - affects only non-hydrostatic code
1559      - to be done: no-slip lateral boundary conditions
1560    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1561    o implement Implicit Vertical advection for pTracers
1562    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1563      (implemented also for implicit vertical diffusion & advection)
1564    o OBCS: extend application of tracer open boundary conditions
1565      to a strip beyond the boundary of width Olx/Oly
1566    o add call monitor to TAF set of required calls (flow directives)
1567      and include in natl_box_adjoint
1568    o untangle a few ifdefs related to cost, ctrl, autodiff
1569      untangel a few ALLOW_ECCO_OPTIMIZATION
1570    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1571      (theta2, salt2 in ecco_cost_weights)
1572    
1573    checkpoint56c_post
1574    o OBCS as control variables
1575      - update ctrl_ad_diff.list, obcs_ad_diff.list
1576      - remove balance of obcs controls from default
1577      - fix index bug nobcs in ctrl_init
1578      - fix dummy fields filen in ctrl_pack
1579      - add dummy weights for obcs
1580    o lsopt: comment out fort.94 output
1581    o optim:
1582      - remove unnecessary header files
1583      - adjusted namelists
1584      - add xerbla.F to Makefile
1585    o exf:
1586      - multiple modifications of exf_check_range
1587      - unit change in exf_init_runoff from [m/year] to [m/s]
1588    o mdsio:
1589      - i/o-vector change debugLevel from debLevA to debLevB
1590    
1591    checkpoint56b_post
1592    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1593      is called from DO_THE_MODEL_IO
1594      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1595      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1596      - clean up PTRACERS_WRITE_TIMEAVE a little
1597    o add another verification experiment that tests both the cfc-pkg and
1598      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1599      reactive tendencies treated inline with regular timestepping
1600    o testreport previously did a lousy job of comparing small numbers, so
1601      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1602      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1603      testreport.
1604    o ptracers_monitor: bug fix for MPI
1605    
1606    checkpoint56a_post
1607    o GCHEM: finish reorganizating the package
1608      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1609        (introduces another 3D-array for each passive tracer, but only if
1610        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1611        gchemTendency is not needed because the timestep is done separately)
1612      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1613      - GCHEM is now---more or less cleanly---separate from PTRACERS
1614      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1615        so clear to me how that should be done in a general way.
1616    o CFC: improve formatting of output in CFC_ATMOS
1617    o PTRACERS:
1618      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1619        that ALL experiments with ptracers enable can be checked. This makes
1620        GCHEM_MONITOR obsolete.
1621      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1622        monitorFreq
1623      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1624    o add PTRACERS (PTR0[1-5]) to testreport output
1625    o exf_check_range:
1626      * default changed to .TRUE.
1627      * will check values for niter0 if debLevA, every timestep if debLevB
1628      * STOP in exf_check_range if 'out of range'
1629      * range chosen generous to allow for potential extema
1630      TBD: a version with stricter range
1631           permitted range would be runtime parameters
1632    o GMredi:
1633      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1634      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1635      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1636    o GCHEM:
1637      - move call to GCHEM_FORCING_SEP, so that it is now called before
1638        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1639      - introduced a useGCHEM runtime flag and applied it everywhere.
1640      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1641        this flag is now only visible within GCHEM-pkg routines.
1642      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1643        be replaced by a 3D array that is computed before thermodynamics; for
1644        this, the tracer ID iTracer had to be included into the parameter list
1645        of ptracers_forcing
1646      - set up forward_step to call gchem_forcing, that will replace
1647        gchem_forcing_int in ptracers_forcing
1648      - cleaning up
1649    o small cleaning of exch2: remove files that are also in eesupp/src
1650    
1651    checkpoint56
1652    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1653    o mnc: cleanup "full" files--fixes out-of-memory problem
1654    o ECCO-GODAE
1655      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1656      * fully merged and updated from SIO code
1657        windstress sign change affects
1658        - exf_inscal_[u/v]stress
1659        - sign of xx_tau[u/v] adjustments
1660        - signs in cost_scat
1661      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1662      * natl_box_adjoint updated and compressed
1663      * 2-level checkpoint switch added
1664        (tested in EXP. 1 of natl_box_adjoint)
1665      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1666    o SVD
1667      * first complete, non-hacked version for SVD calculations
1668      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1669        performed via direct access files admtlm_vector.it????
1670        (via ctrl_[un]pack)
1671      * optimcycle is used for ARPACK iteration counter
1672        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1673      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1674        and add linear transforms where necessary
1675      * controls are initial/final SST, SSS (can be extended; need to check
1676        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1677    o mdsio: filename info to both stderr, stdout
1678    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1679      from sign change
1680    
1681    checkpoint55j_post
1682    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1683      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1684    o add consistent build directories and .cvsignore files to verification
1685    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1686    o make all subroutines 30 or less characters in length for certain older
1687      compilers to work (a thorough search only turns up two routines in
1688      pkg/ptracers)
1689    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1690      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1691    
1692    checkpoint55i_post
1693    o change arrays for total vertical diffusivity (2.D if explicit,
1694      3.D if implicit) ; each ptracer uses its own background value.
1695    o added mnc/NetCDF output capability to ocn_compon_interf
1696      - added bits to verification/cpl_aim+ocn so that it can run on
1697        ITRDA and other clusters without the mpirun "-wd" option
1698    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1699      configuration
1700    o give MNC the ability to create additional files rather than
1701      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1702      - the default is just less than 2GB which is a practical limit
1703        on many systems
1704    o Compute the non-local term using either KPP vertical diffusivity (=default)
1705       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1706    
1707    checkpoint55h_post
1708    o add verification test "vermix"
1709    o remove all the *_ioinc flags and replace with the single global
1710      outputTypesInclusive flag
1711    o allow to set a vertical profile of vertical diffusivity for T & S
1712    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1713    o useMNC moved from data.mnc to data.pkg
1714    
1715    checkpoint55g_post
1716    o Renaming carbon AD experiments to comply with testreport conventions
1717    o Updating adjoint of Held-Suarez hs94.1x64x5
1718    o Fixing directives for non-ECCO forward_step, after ECCO directives
1719      have been fixed to avoid recomp. of do_oceanic_phys
1720      Works well for global_ocean.90x40x15,
1721      but recomp. issue remains for carbon
1722    o Updating adjoint output for natl_box_adjoint after
1723      pkg/ecco has been modified (see taga c55d_post)
1724    
1725    checkpoint55f_post
1726    o rename to timeave_init_fixed
1727    
1728    checkpoint55e_post
1729    o some delicate re-shuffle of store directives to avoid one
1730      extra call of do_oceanic_physics
1731      affects ecco_the_main_loop.F, do_oceanic_physics.F
1732      checkpoint_lev1_directives.h
1733    o NB: this may break global_ocean adjoint temporarily,
1734      but it is clear how to fix it. Will do later, need this now.
1735    
1736    checkpoint55d_post
1737    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1738    o ecco_cost_weights is modified to 1x1 runs
1739    o modifs to allow observations to be read in as
1740      single file or yearly files
1741    o enable to read exf forcing fields as either
1742      single file or yearly files (flag useExfYearlyFields)
1743    checkpoint55d_pre
1744    
1745    o switch between 2-level and 3-level checkpointing
1746    o add ability of MNC to write local and "partial" (eg. 2D slices where
1747      the full 3D field is never actually stored) arrays to NetCDF files
1748      with the correct (that is, the complete multi-dimensional) set of
1749      array indicies
1750      - used in mom_vecinv() to write the diagFreq output
1751      - tested (demonstrated) in verification/aim.5l_cs
1752    o further mnc-ification
1753      - add verification/lab_sea to the list with mnc setups
1754      - fix undefined mnc v-names in cd_code
1755      - add kpp to mnc output (both snapshot and timeave)
1756    o non-hydrostatic code
1757      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1758        in calc_gw.F
1759      - defaults to viscAh
1760      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1761        friction or Leith) in non-hydrostatic mode, as long as there is
1762        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1763    o pkg/cost
1764      extend simple cost functions to treat time mean quantities
1765      (T,U,V) via cost_accumulate_state from cost_tile
1766    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1767        be 2 times larger than the minimum size the advection scheme requires.
1768        now get a perfect conservation of salt in advect_cs test-exp (updated)
1769    o GGL90 (Gaspar's TKE mixed layer)
1770      - add horizontal diffusion of TKE, requires exchanges in
1771        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1772        default. In OPA there is no horizontal diffusion of TKE but the
1773        mixing coefficients are computed from a horizontal average of TKE of
1774        6 points or so. I think that diffusion has a little more physical
1775        justification.
1776      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1777        was in vain)
1778      - mask tke-variable in ggl90_init
1779    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1780    o fix biharmonic diffusion on CS-grid.
1781    o more obcs stuff
1782      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1783        for reading boundary values. This routine is called from
1784        obcs_prescribe_read
1785      - updated obcs_check
1786      - changed sponge layer relaxation parameter units for days to seconds
1787      - turned off sponge layer by default
1788      - changed argument list of OBCS_CALC to myTime+deltaTclock
1789      - fixed about 35 bugs in obcs_external_fields_load
1790    
1791    checkpoint55c_post
1792    o obcs stuff
1793      - new runtime flags useOBCSprescribe, useOBCSbalance
1794      - re-arranged obcs_calc
1795      - moved exf_getobcs to obcs_prescibe_read
1796        obcs_prescibe_read is called after ORLANSKI stuff
1797        and independent of it (executable can contain all).
1798      - updated obcs_check
1799      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1800        These may be necessary only if tangential velocities are
1801        prescribed at OB, not sure, needs testing.
1802    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1803      which simplifies the calls and passes the ifc check-bounds test
1804    
1805    checkpoint55b_post
1806    o add a 2D scalar, Z location, exchange_2 routine.
1807    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1808      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1809      affects advect_cs results (for the wrong reason): update output.txt
1810    o use a more standard discretization for biharmonic viscosity ;
1811     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
1812      affects results of dome set-up: update output.txt
1813    o fix gad_advection.F (CubedSphere part), back to version 1.23
1814    o fix bug in mom_vi_del2uv.F (CubedSphere part).
1815    
1816    checkpoint55a_post
1817    o merged code to
1818      * prescribe/read time-dependent open boundaries
1819        (works in conjunction with exf, cal)
1820      * sponge layer code for open boundaries
1821      * each boundary N/S/E/W now has its own CPP option
1822        (healthy for the adjoint)
1823    
1824    checkpoint55
1825    o up-to-date adjoint of previous breaks
1826      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
1827      - global_ocean_ebm: adjoint still needs fix (TLM ok)
1828      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
1829      - carbon: * remove tr1-related adjoint verification
1830                * add ptracer as control variable
1831    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
1832      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
1833    
1834    checkpoint54f_post
1835    o in verification/carbin/ remove experiment related to
1836      ALLOW_PASSIVE_TRACER (array tr1 etc)
1837      code_ad/ input_ad/ results_ad
1838    
1839    o add two new packages
1840      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
1841        + subject to optimization (memory)
1842      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
1843        + subject to reordering (many GOTOs in the original code)
1844        + so far opps is called for every (i,j) point, and then operates in
1845          the vertical; one may want to reorder the scheme in order operate in
1846          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
1847          fields)
1848    o overhaul of IO so that we now have flags for MDSIO and/or MNC
1849      - all verification tests compile and run with linux_ia32_g77
1850      - defaults are compatible with current input files--nothing
1851        should change if you were not previously using MNC
1852      - MNC output has been added in numerous places (eg. timeave)
1853        but there are still a few writes not yet do-able with MNC
1854        (this is in progress)
1855      - flags now allow for either/or/both use of MDSIO and MNC and
1856        documentation will soon follow
1857      - numerous small formatting cleanups for ProTeX
1858    o add version info (via BUILD_INFO.h) to MNC and stdout
1859    
1860    checkpoint54e_post
1861    o add two new packages
1862      - pp81 (Packanowski and Philander, 1981), Richardson number and
1863        stratification dependent mixing
1864      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
1865      - these scheme operate in a similar manner as KPP (without ghat, of
1866        course), however there is only one diffusivity that is used for both
1867        temperature and salinity (and passive tracers)ç
1868    o add offline package
1869    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
1870      provided by Stephanie Dutkiewicz
1871    o genmake2: add ability to search for C compilers and cleanup test output
1872      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
1873    
1874    checkpoint54d_post
1875    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
1876    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
1877      leading to additional shift by 5 days each year of integration
1878       (i.e. leading to considerable offset over the years)
1879    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
1880    o start with no AB and no initial filtering (staggerTimeStep):
1881      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
1882    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
1883      (external loading & cpl import/export stay in forward_step.F)
1884    o update coupling interface to work with new staggerTimeStep
1885    o change MDSIO ptracers_pickup.
1886    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
1887    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
1888    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
1889    
1890    checkpoint54c_post
1891    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
1892      this affects (truncation error) output.txt of test-exp:
1893       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
1894    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
1895    o change Qnet to always be the net heat flux, (+upward).
1896      affects (truncation error) output of natl_box exp.: updated
1897    o define the max number of passive tracers in PTRACERS_SIZE.h
1898    o start to test mnc routinely in exp0
1899    o add sea-ice loading (sIceLoad) as a new forcing field.
1900    
1901    checkpoint54b_post
1902    o add testreport "-j JOBS" option for parallel builds (tested and pretty
1903       impressive on Altix and Opteron systems)
1904    o diagnostics can now write NetCDF files through the mnc package
1905    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
1906    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
1907    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
1908      affects (truncation error) output of lab_sea & natl_box exp.: updated
1909    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
1910    
1911    checkpoint54a_post
1912    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
1913    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
1914    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
1915    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
1916      + internal_wave (shift in writing cg2d_ini_res)
1917    checkpoint54a_pre
1918    
1919    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
1920      - modified verification/lab_sea and natl_box_adjoint accordingly
1921    
1922    checkpoint54
1923    checkpoint53g_post
1924    o prepare splitting of thermodynamics: store convect.counter in common block
1925    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
1926      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
1927    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
1928    o new parameter "nShapS": allow to treat differently S from T (nShapT)
1929    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
1930    o restore adjointability
1931    
1932    checkpoint53f_post
1933    o modifications that affect AIM experiment results (update output.txt):
1934      - no advection of S at top interface Nr (pkg/generic_advdiff)
1935      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
1936    o AIM pkg:
1937      - include stability function into surf.Flux derivative relative to Tsurf
1938      - calculate clear-sky radiation & surface temp. change (for diagnostics)
1939    
1940    checkpoint53e_post
1941    o merged cylindrical coord configuration
1942    o added rotating_tank experiment
1943    checkpoint53e_pre
1944    
1945    checkpoint53d_post
1946    o faulks upgraded: re-generate output.txt that have changed:
1947       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
1948    o Added Bryan and Lewis, 1979, vertical diffusivity profile
1949    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
1950    o added Sadourny discretization of Coriolis
1951      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
1952      - re-enabled use of omega3 (useAbsVorticity)
1953    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
1954      vector-invariant equations
1955      - note: does *NOT* yet use same variable visc. for no-slip BC's.
1956    o recoded the lateral boundary conditions for non-hydrostatic w, this time
1957      hopefully without new bugs
1958      - still to do: biharmonic friction for non-hydrostatic w
1959    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
1960    o regenerated output for global_ocean_ebm (using -ieee)
1961    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
1962      of mom_common/
1963      - simple re-arrangement of instructions within computing loop
1964    checkpoint53d_pre
1965    
1966    checkpoint53c_post
1967    o new version of coupler for AIM+thSIce and Ocean models
1968     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
1969     - land: change Evaporation of snow
1970     - aim with thSIce: fix bug in snow-precip.
1971    o changes to calc_gw.F
1972     - bug fix for w^2 term near the bottom boundary
1973     - (hopefully) improve the lateral slip boundary condtions for use with
1974        partial/looped cells
1975      - because the bug fix changes two verification experiments anyway (exp5
1976        and plume on slope), change the lateral boundary condition from half slip
1977        to the value of no_slip_sides
1978    o ebm package wasnt quite up to the parallel task. Fixed that.
1979    o Adjoint of EBM package + verification
1980      * TLM OK
1981      * ADM not sufficient accuracy yet (needs further testing)
1982    
1983    checkpoint53b_post
1984    o Commiting new energy balance model to repository
1985      * package is pkg/ebm
1986      * verif. is verification/global_ocean_ebm
1987      * references are in ebm_driver.F
1988    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1989    C        Global thermohaline circulation. Part I:
1990    C        Sensitivity to atmospheric moisture transport.
1991    C        J. Climate 12(1), 71-82
1992    C      * X. Wang, P. Stone and J. Marotzke, 1999:
1993    C        Global thermohaline circulation. Part II:
1994    C        Sensitivity with interactive transport.
1995    C        J. Climate 12(1), 83-91
1996    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
1997    C        Destabilization of the thermohaline circulation
1998    C        by atmospheric eddy transports.
1999    C        J. Climate 7(12), 1870-1882
2000    o Will need long integration testing.
2001    checkpoint53b_pre
2002    
2003    o created pkg/mom_common in preparation for variable viscosity code
2004    o renamed and split ini_mnc_io
2005    o pkg/land: only liquid water can diffuse or run-off
2006    o AIM using land: soil wetness availability account for snow
2007    o added printMapIncludesZeros to EEPARMS namelist
2008    
2009    checkpoint53a_post
2010    o restore TAMC compatiility for exf_constants.h
2011      (no usage of _d in .h)
2012    o Additional storing in KPP in an attempt to fix
2013      TAMC problem with adjoint of KPP code.
2014      (no success...)
2015      Identical code works fine with TAF.
2016    o Fixed verification/natl_box_adjoint experiments.
2017      Initial conditions for Experiments 4 and 5 are now
2018      set to "SEAICE_initialHEFF=0", which is more reasonable,
2019      and hence gives results closer to that of Experiment 2.
2020      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2021    
2022    checkpoint53
2023    o stable checkpoint with up to date adjoint
2024      TLM tests only run for 1st grdchk at the moment. Its unclear if
2025      this is a code problem or a problem with resetting code for g_
2026      variables that is being autogenerated wrong.
2027      Otherwise:
2028       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2029       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2030         are both still in chaos following their security messes.
2031    
2032    checkpoint52n_post
2033    o various build (mostly genmake2) changes including:
2034      - ability to build/run more easily within Cygwin and MacOS X
2035      - more complicated Makefiles with a stronger dependence on Gnu Make
2036    o pkg/seaice modifications
2037      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2038        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2039        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2040      - changed proxy for geostrophic velocity and updated
2041        verification/lab_sea/results/* accordingly
2042      - removed ADI dynamic solver from pkg/seaice
2043      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2044        they caused a segmentation fault under certain circumstances
2045      - removed unused field WATR
2046    o bug fix in exf-package:
2047      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2048         now reflect that.
2049    o small fixes in the cal-package:
2050      - set reference date to first of January for the 'model'-calendar
2051      - failing of cal_CheckDate in cal_FullDate now actually results in a
2052        warning
2053    o small modifications in exf-package to increase flexibility:
2054      - change climtempfreeze from a constant to a runtime parameter that
2055        is specified in data.exf_clim (default = -1.9)
2056      - introduce runtime parameter windstressmax (default = 2.0) that is
2057        specified in data.exf
2058    o fix in pkg/thsice:
2059      - update Evap (Tsf changes) to be consistent with Latent heat flux
2060      - maintain snow precipitation unchanged (even if Tsf >=0).
2061     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2062    
2063    checkpoint52m_post
2064    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2065      this does not change any of the results, because myIter=0 in swfrac always
2066      lead to jwtype=2 (the default anyway), but the call makes little sense
2067      as a default
2068    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2069    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2070      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2071    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2072    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2073    o extending useSingleCpuIO option to work with new exch2 I/O format
2074      - old-style, missing-tile I/O is still accessible by defining CPP
2075        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2076    o monitor package can write to NetCDF files and/or STDOUT
2077    o fix re-definition bug in MNC_GRID_INIT_ALL()
2078    o doc/api_reference added
2079      - a framework for building an API Reference Manual using all
2080        the "protex" comments embedded in the code
2081      - see pkg/generic_advdiff, pkg/mnc for examples
2082    o MNC:
2083      - make myThid the last argument for all subroutines
2084      - new default for the grid files: NO halos
2085      - add useMNC and other run-time flags
2086      - separate per-file-group handling of the unlimited dimension
2087      - early initialization of MNC w/ flags read at the eeboot stage
2088        and lookup tables set in initialize_fixed
2089      - write all MNC output to a freshly-created directory
2090    o thermodynamics sea-ice (thsice) is now tested with testreport.
2091    o test exp. advect_cs: use the standard cs32 grid ; update output.
2092    o Added functionality to grdchk:
2093      pick global i,j,k position (or nearest wet) where to perform check.
2094    
2095    checkpoint52l_post
2096    o new land formulation:
2097      a) use ground enthalpy as prognostic variable to ensure exact
2098         energy conservation.
2099      b) account for water temperature and for latent heat of freezing
2100         in all processes (rain, run-off, ground storage)
2101      c) compute surface and ground temperature implicitly.
2102    o aim_v23 modification for new land model:
2103      a) Treat separately land / ocean / sea-ice surface fluxes
2104         to allow implicit computation of land & sea-ice surface temp.
2105      b) add snow precipitation.
2106    checkpoint52l_pre
2107    
2108    o fix problem (when 1 tile is empty) in min/max monitor.
2109    o fix bug in timeAve (u,vZetatave in common block)
2110    o no restoring terms under ice for pkg/seaice
2111    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2112    o bug fix for pkg/seaice pickups
2113    o change MNC call locations and add coordinate attributes
2114    o mask vorticity at the corner ; affects global_ocean.cs output
2115    o fix ini_curvilinear_grid ; test CS experiments with mpi
2116    o aim.5l_cs: modify sea-ice fraction input file ; update output
2117    o exf: Adding simple range check routine for exf fields after read
2118    
2119    checkpoint52k_post
2120    o removed top-level directory "diags"
2121      - we migrated these functions to pkg/timeave a long time ago
2122    o fixed bug introduced in pkg/monitor
2123    o accuracy ctrlprec = 32 insuffient for gradient checks using
2124      averaged fields (I/O via cost_averages)
2125      -> use ctrl.h in active_file*.F to control I/O precision.
2126    o paramter list of CALL ADTHE_MAIN_LOOP
2127    o added initial do_the_model_io to ecco
2128    o set all ...Freq to zero after cost_final
2129      taveFreq, dumpFreq, pChkptFreq
2130    o MAIN and ECCO differentiability restored
2131    
2132    checkpoint52j_post
2133    o fix nchklev in tamc.h for global_ocean...
2134    o Bringing flow and store directives up-to-date
2135    o Really weird thing!
2136      call do_the_model_io from the_main_loop with parameters
2137      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2138      TAF places a faulty re-call of initialise_varia
2139      after cost_final call which should not be there!
2140    checkpoint52j_pre
2141    
2142    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2143      error messages
2144    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2145    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2146      debug output
2147    o modfied mdsio_writefield.F to handle non-global files under exch2
2148    o update AIM Cubed-Sphere exp (aim.5l_cs):
2149      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2150    o update AIM Equatorial Channel exp:
2151      use standard aim_v23 pkg and change the SST fields to be more realistic.
2152    o globalFile now works with exch2
2153    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2154      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2155    o limit timeave output for hi-res integrations
2156    
2157    checkpoint52i_post
2158    o removed CPP_EEOPTIONS.h from verification/*/code
2159    o updated the tiling for global_ocean_pressure
2160    checkpoint52i_pre
2161    
2162    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2163      the old pkg/aim).
2164    
2165    checkpoint52h_pre
2166    o shortened offending lines in exch2_send_rx?.template
2167    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2168    o genmake2: add build & execute test for NetCDF code
2169    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2170      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2171    o added useSingleCPUIO flag to monitor.F and mon_out.F
2172    o added temporary hack for sea-ice dynamics on the cube:
2173      metric terms are ignored and it is assumed that
2174      there is no sea-ice on cube faces 1, 2, 4, and 5.
2175    
2176    checkpoint52f_post
2177    o added exch2 cube routines to pkg/exch2
2178    o modified hs94.cs-32x32x5 to use it
2179    o added new grid files to hs94.cs-32x32x5
2180    checkpoint52f_pre
2181    
2182    checkpoint52e_post
2183    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2184      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2185    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2186      to work with implicit vertical advection and AB ;
2187    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2188    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2189     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2190    checkpoint52e_pre
2191    
2192    o fix bug in impldiff when Nr=1 or Nr=2.
2193    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2194    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2195    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2196      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2197    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2198    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2199    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2200    
2201    checkpoint52d_post
2202    o re-tiled many expts to allow comparison in multi-processor mode
2203      - updated output accordingly
2204      - changed hs94.128x64x5 to use intial T from file rather than use the
2205        random number generator
2206    o add infrastructure in model routines for fizhi and gridalt packages
2207    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2208    o changes to permit hi-res, cubed-sphere, configuration
2209      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2210      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2211      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2212        of surface winds for the cube
2213      (A verification experiment, based on global_ocean.cs32x15, but with
2214       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2215       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2216       complete with example surface forcing files and matlab scripts to look
2217       at the output and compare it with that of global_ocean.cs32x15.)
2218    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2219       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2220       to conform to the common rule.
2221    o check-in the first version of the coupler + interfaces for multi-components
2222       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2223       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2224       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2225       - ocean and atmos. share the same horizontal grid (no interpolation).
2226       - exchanges between component and coupler is done in forward_step
2227    o new verification experiment, cpl_aim+ocn:
2228       coupled ocean - AIM atmosphere on cs32 grid.
2229    
2230    checkpoint52d_pre
2231    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2232    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2233    
2234    checkpoint52c_post
2235    o Fixing OPTIONS files for use of exf:
2236      - ALLOW_ECCO not needed
2237      - ECCO_CPPOPTIONS.h should not be included from
2238        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2239        as has been the case in the past
2240      - All cal/exf related options are currently set in
2241        single header file. Should remain so until we
2242        agree on a consistent new policy.
2243    o Removed all CPP options for cal package.
2244      cal has no more CPP options.
2245    o modified STOREs in GAD_ADVECTION
2246    o corrected key comp. for passkey
2247    
2248    checkpoint52b_post
2249    o new version: "thsice" of thermodynamic sea-ice pkg:
2250     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2251     - modify fluxes but do not change theta directly;
2252     - light cleaning of bulk_force pkg (still needed with thsice).
2253     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2254       + output_thsice.txt to test thsice & bulk_force pkgs.
2255    o put back grid & coriolis monitor output.
2256    checkpoint52b_pre
2257    
2258    o call "do_the_model_io" at the beginning (=> dump initial state)
2259    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2260    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2261      (need info on NUMBER_OF_PTRACERS)
2262    o missing PTRACERS headers in some routines
2263    o default tamc.h in pkg/autodiff supposed to crash
2264      to ensure proper customization
2265    
2266    checkpoint52a_post
2267    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2268      - moved surfaceTendencyTice from pkg/seaice to main code
2269      - subroutine FREEZE_SURFACE now limits only surface temperature
2270        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2271        => new output.txt for global_ocean.cs32x15 & global_with_exf
2272      - keep the old version of FREEZE for backward compatibility;
2273        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2274      - corresponding modifs for TAF directives
2275    o added surface flux output variables to TIMEAVE_STATVARS
2276    o time-averaged output for pkg/ptracers
2277    o fix problem with ECCO-related divided adjoint
2278      snapshot file was missing some ad-variables,
2279      but no warning issued by TAF
2280    
2281    checkpoint52a_pre
2282    o some bug fixes for #undef REAL4_IS_SLOW
2283    
2284    checkpoint52 = ecco_c52_e35
2285    o after testing adjoints of checkpoint51u_post
2286    
2287    checkpoint51u_post
2288    o this is the post-merge tag of the ecco-branch
2289      (needs another clean checkout and re-testing)
2290    o various natl_box_adjoint configs and results
2291      but no input fields
2292    o obcs adjoint not yet merged!
2293    o adding ECCO global 1x1 and 2x2 degree configs
2294    o updated/extended some store directives for seaice
2295    o pkg/ecco now containes ecco-specific part of cost function
2296    o top level routines the_main_loop, forward_step
2297      supersede those in model/src/
2298      previous input data.cost now in data.ecco
2299      (new namelist ecco_cost_nml)
2300    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2301    
2302    checkpoint51t_post
2303    o this is the pre-merge tag of the ecco-branch
2304    
2305    checkpoint51s_post
2306    o cleanup: removed various obsolete #define-s
2307    o pkg/grdchk
2308      - renamed 'ph-grd 3' to 'grad-res'
2309      - merged from ecco-branch
2310        (remaining bug fixes for obcs gradient checks)
2311      - additional high-precision output for testreport
2312        (grep for 'precision_grdchk_result')
2313    
2314    checkpoint51r_post
2315    o cleaned up or removed CPP_OPTIONS.h files
2316    o updated results for some of the tests to reflect the new
2317      optfiles (-ieee: -O0 instead of -O3)
2318    
2319    checkpoint51q_post
2320    o cd_code:
2321      - moved cd_scheme.F -> cd_code_scheme.F
2322      - separate read_checkpoint from cd_code_ini_vars.F
2323      - separated cd_code part from write_checkpoint
2324      - updated AD_SOURCE, generated .flow
2325      - added CD_CODE_VARS.h to the_main_loop
2326      - Moving cd_code specific store dir.s to pkg/cd_code
2327    o ctrl package totally restructured
2328      - pack/unpack now optional and decoupled from
2329        xx_/adxx_ I/O
2330      - ctrl_pack/unpack cleaned
2331        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2332      - confined inclusion of AD_CONFIG.h to where necessary.
2333    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2334    
2335    checkpoint51p_post
2336    o create initial cd_code package
2337      - WARNING: the initialization of fields within packages
2338        is broken because INI_FIELDS (where READ_CHECKPOINT is
2339        called) is called *before* PACKAGES_INIT_VARIABLES.
2340        This seems to be backwards since
2341        1) its important to initially zero the entire field including
2342           the "halo" region
2343        2) zeroing needs to be done *before* reading pickup info
2344           and the pickup call might or might not happen in any
2345           particular run
2346      - this needs an overhaul for R2
2347    o cleanup verification/*/code/GMREDI_OPTIONS.h
2348    o cleanup testreport
2349    
2350    checkpoint51o_post
2351    o bringing AD-related verif's up to date with genmake2
2352      - carbon/
2353      - global_ocean.90x40x15/
2354      - hs.94.1x64x5/
2355      - (front_relax/ )
2356    o (more) consistent directory structure for AD-related verif.'s
2357    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2358    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2359    o bug fix in find_alpha.F for MDJWF:
2360      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2361        change rho -> rho-rhoConst
2362      - replace call find_rho to find_rhonum
2363    o initialisation of rFlx extended to full array (required by TAF)
2364      and shifted to thermodynamics
2365    o removed PTRACERS.h in ptracers routine
2366    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2367    o Correcting initialisations for fVerU, fVerV.
2368    o helping TAF to recognize dependency on kUp for
2369      fVerU, fVerV
2370    o Replacing delZ by delR in pkg/ctrl/
2371    checkpoint51o_pre
2372    
2373    o undid all of cp51 pending some cleanups and discussion
2374    o added the [#include "AD_CONFIG.h"] statement to all files that need
2375       it for adjoint/tl #defines
2376     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2377     o removed tools/genmake since it no longer works
2378    
2379    checkpoint51n_post
2380    o modifications to make FREEZE flux visible to pkg/kpp
2381      - moved surfaceTendencyTice from pkg/seaice to main code
2382      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2383      - subroutine FREEZE now limits only surface temperature
2384        (this means new output.txt for global_ocean.90x40x15,
2385         global_ocean.cs32x15, and global_with_exf)
2386    o added surface flux output variables to TIMEAVE_STATVARS
2387    
2388    checkpoint51n_pre
2389    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2390    o added [#include "AD_CONFIG.h"] to all files that use the following
2391      defines:
2392      - ALLOW_ADJOINT_RUN
2393      - ALLOW_TANGENTLINEAR_RUN
2394      - ALLOW_ECCO_OPTIMIZATION
2395    
2396    checkpoint51m_post
2397    o incorporating changes to get TAMC/TAF working in genmake2
2398      - added new TAMC/TAF targets to the Makefile
2399      - various cleanups related to package handling
2400      - these changes should have no impact on the forward model
2401    
2402    checkpoint51l_post
2403    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2404     - faster algorithm for cal_addtime.F
2405     - higher precision arithmetic, where needed
2406     - pkg/exf *startdate variables changed from calendar date to
2407       model integration time
2408    
2409    checkpoint51l_pre
2410    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2411    o enable to apply restoring on S & T only in a latitude band.
2412    o update output (external_forcing_surf modif. change truncation errors)
2413       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2414    
2415    checkpoint51k_post
2416    o change default to: useNHMTerms=.FALSE.
2417     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2418       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2419     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2420        exp1, ideal_2D_oce
2421     - change data file of oceanic exp (leave the results unchanged for now)
2422       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2423    o set gravitySign automatically according to the vertical coordinate used
2424      (and change sign: back to "logical" value: +1 when R increases downward)
2425    o added an include barrier to the default CPP_OPTIONS.h and
2426      removed the #include "PACKAGES_CONFIG.h" from it
2427    o fix a bug in mom_fluxform (from chk51j_post)
2428    
2429    checkpoint51j_post
2430    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2431    o adjusted some flow directives (dynamics, thermodynamics)
2432    o added cubed-sphere case to test cost function
2433    o heckpoint_lev?_directives.h now include
2434      pkg-specific directives, whenever those are enabled.
2435    o Moving pkg-specific flow directives to corresponding pkg
2436      Moving pkg-specific differentiation list to corresponding pkg
2437      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2438      ---> conventions are
2439           - pkg_ad.flow
2440           - pkg_ad_diff.list
2441           - pkg_ad_check_lev?_dir.h
2442    
2443    checkpoint51i_post
2444    o merge of the branch-genmake2
2445      - knowingly breaks the older genmake
2446      - automatic generation of all ALLOW_${PKG_NAME} defines
2447      - new testreport supersedes older testscript
2448    o large number of package inclusion and header cleanups
2449    checkpoint51i_pre
2450    
2451    o new output for adjoin of global ocean vector invariant
2452    o fix for checkpoint of thermodynamic seaice and bulk_force
2453    o Steph gchem various cleanups
2454    
2455    checkpoint 51h_pre
2456    o fixed some single quotes
2457    o modify gchem pkg to be more versatile
2458    o modifications to clean up dic pkg
2459    o add pkg/cfc
2460    
2461    checkpoint51g_post
2462    o provide links for ARPACK and ADM*TLM
2463    o start removing verification/vero/
2464    o update AD-related stuff
2465      (in particular some IF-statements in model/src/ routines)
2466    o adding to verification/global_ocean.90x40x15/ adjoint of
2467      vector invariant setup
2468    
2469    checkpoint51f_post
2470    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2471    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2472      of tracer Green's fucntions for ocean inversion project.
2473    
2474    checkpoint51f_pre
2475    o Added on-the-fly spatial interpolation capability
2476        "USE_EXF_INTERPOLATION" to pkg/exf.
2477      - This is a temporary Cartesian-grid hack until
2478        the super-duper ESMF coupler becomes available.
2479      - See verification/global_with_exf/README for usage example.
2480      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2481        flags and modified pkg/seaice accordingly.
2482    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2483        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2484        non-local transport term.
2485    
2486    checkpoint51e_post
2487    o pkg/mom_vecinv:
2488      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2489      - add time-ave diagnostic of vorticity advection.
2490    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2491    o atmospheric geopotential: - include water vapor effect;
2492                                - use p^kappa in p* scaling.
2493    o land pkg: read initial state from files.
2494    o AIM : add stratospheric drag in the upper level
2495    
2496    checkpoint51d_post
2497    o change function ILNBLNK (=> last non-blank char.) to return zero
2498      (instead of the string length) when the string. char is empty
2499    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2500    o modif's to restore TAMC compatibility
2501      - avoid "_d" constructs in PARAMETER declarations
2502      - avoid interrupting lines by comment lines
2503    o Use cluster local disks for purely local I/O
2504      vs. globally visible disks needed for ctrl stuff
2505      (merged from ecco-branch)
2506      - new active_file_loc... and mdsio_..._loc routines
2507      - affected packages: autodiff, ctrl, grdchk, mdsio
2508    
2509    checkpoint51c_post
2510    o introducing integer flag debugLevel
2511      - debLevZero: suppress all output
2512      - debLevA: standard
2513      - debLevB: equivalent to current debugMode=.TRUE.
2514    o introducing pathname variable mdsioLocalDir for mdsio
2515      that can be specified at runtime
2516      (relevant for cluster I/O to local disk)
2517    `
2518    >>>checkpoint51b_post
2519    adjoint of ptracers
2520    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2521    o extended state in checkpoint_lev?, etc.
2522    o alternative ctrl/cost with tr1 or ptracer
2523    o new comlev1_bibj_ptracers
2524    o new ptracers.flow
2525    o made ptracers_forcing same as external_forcing_s
2526    o added verification for adjoint with ptracers
2527      - adm. grdchk fail so far
2528      - tlm. grdchk OK
2529      - checked tapelev/comlev recomputations: OK
2530    <<<checkpoint51b_pre
2531    
2532    checkpoint51a_post
2533    o added code for biogeochemistry package
2534      - new pkgs: dic, gchem
2535      - new subroutine in ptracers
2536    o modify code for biogeo packages
2537      - in model/src and pkg/ptracers
2538    
2539    checkpoint51
2540    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2541      - autodiff, ctrl, exf, grdchk, seaice
2542      kept separate packages
2543      - cost, ecco, obcs
2544    o updating verification/internal_wave, verification/lab_sea
2545      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2546    
2547    checkpoint50i_post
2548    o Preparing next differentiable checkpoint and sync
2549      of MAIN vs. ecco-branch
2550      - 1st step: this one is differentiable
2551      - 2nd step: next(! not this) checkpoint will have updated packages
2552                  from ecco-branch)
2553    
2554    checkpoint50h_post
2555    o new package "land": provide surface BC for AIM.
2556    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2557    o AIM: use true log-P extrapolation for near surface temp (= as in
2558        F.Molteni paper) ; update aim.5l_cs output.
2559    o New variable in PARM03 for more flexible pickups
2560    o somewhat cleaned package initialisation sequence for
2561      ctrl/ cost/ ecco/ in packages_... routines
2562    
2563    checkpoint50g_post
2564    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2565      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2566      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2567        made the default because of faster convergence than ADI
2568    
2569    checkpoint50f_post
2570    o exf totally restructured
2571      - replaced all exf_set_ routines by one generic exf_set_gen.F
2572        and made sure it's still differentiable
2573      - split exf_getffields.F into new exf_bulkformulae.F
2574      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2575      - updated adjoint/makefile and relevant verif. accordingly
2576    
2577    checkpoint50f_pre
2578     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2579          + change Evap over land. (update aim.5l_cs output)
2580     o added missing .cvsignores and made uniform across expts
2581     o changed configuration of tidal_basin_2d expt
2582     o added pkg/debug functions for tracing code in fatal crashes
2583     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2584     o new fn in pkg/monitor to stop model if solution grows too big
2585     o removed lots of single quotes from comments
2586    
2587    checkpoint50e_post
2588    o make KPP work with PTRACERS
2589     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2590       nearly a copy of kpp_transport_s
2591     - there is no analogue to SurfaceTendencyS, so I have to use
2592       gPtr(of the surface layer) instead
2593    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2594    checkpoint50e_pre
2595    
2596    checkpoint50d_post
2597    o change kpp output from multiple-record state files to single-record state
2598      files analogous to write_state.F
2599    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2600      analogous to the cg2d-related output.
2601    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2602      so that writing to internal file fn (with length 512) fails.
2603    checkpoint50d_pre
2604    
2605    checkpoint50c_post
2606    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2607    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2608    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2609    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2610    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2611    
2612    checkpoint50c_pre
2613    Merging from release1_p13:
2614    o bug fix for pkg/seaice dynamic solver
2615    o Added SEAICE_initialHEFF to pkg/seaice
2616    
2617    checkpoint50b_post
2618    o store u*,v* in gU,V instead of in guNm1,gvNm1
2619    o in order to put the momForcing out of the Adams-Bashforth:
2620      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2621      to timestep.F
2622    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2623    o re-generate output for highly sensitive test-exp:
2624       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2625    
2626    checkpoint50b_pre
2627    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2628    o corrected CPP option mismatch in exf_Bulk... functions for case
2629      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2630    
2631    checkpoint50a_post
2632    o Bug fix for merging between c50 and KPP.
2633      ikey was passed from thermodynamics to kpp_calc via
2634      common block rather than being recomputed in kpp_calc,
2635      in contradiction with new key itdkey.
2636      New key ikppkey created, and tamc.h headers updated.
2637    
2638    checkpoint50
2639    - 2nd step of merge with ecco-branch:
2640      merge changes in ecco-branch back into main trunk
2641    - bug fix in find_alpha
2642    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2643    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2644    - merged some sliced AD support routines
2645    
2646    checkpoint49
2647    merged from ecco-branch:
2648    o exf:
2649      - Enable initialisation of forcing fields to constant
2650        (runtime) values.
2651      - in exf_getffields.F
2652        Reduce i-/j-loop to interior domain, discarding overlaps.
2653        That also fixes wrong TAF-key computations for key_1, key_2
2654        with bulf formulae.
2655      - exf_init.F modify #ifdef for exf_init_evap
2656      - exf_getffieldrec.F, ctrl_getrec.F
2657        The following INT-usages are not safe:
2658          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2659          fldcount = int(fldsecs/fldperiod) + 1
2660        and were modified.
2661    o autodiff: checkpoint_lev...
2662      - updated storing for bulk formulae (some arrays were missing)
2663      - added state for seaice package
2664      - synchronized with main branch
2665    o DIVA:
2666      Modif.s in
2667      - the_main_loop.F
2668      - the_model_main.F
2669      and added cost_final_restore.F cost_final_store.F
2670      o With these changes, it is possible to fully separate
2671        the first forward run to compute the cost function (mdthe_main_loop)
2672        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2673        into separate model executions.
2674        This enables better tuning of DIVA to given queue sizes.
2675      o Loss of cost function value in consecutive DIVA runs is
2676        fixed by storing to 'costfinal' file.
2677      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2678        beginning/end of adjoint integration is accounted for.
2679      The current changes apply to TAF-1.4.26.
2680      TAF has one remaining bug, requiring one manual change
2681      (see MITgcm manual).
2682    o cal: synchronized between MAIN and ecco-branch
2683    
2684    checkpoint48i_post
2685    o Changes to restore differentiability of code w.r.t. previous tag
2686      (mostly adding new routines to make list and replacing
2687      pressure by totPhiHyd).
2688    o Updated and merged grdchk package
2689      - has both ADM and TLM checks
2690      - works for single- and multi-proc.
2691      - output cleaned
2692      - worked successfully for parallel DIVA
2693    o genmake:
2694      - Adding -platform=SP4
2695      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2696    o Modif. for DIVA:
2697      ctrl_unpack should not be called in intermediate DIVA interval.
2698      (similar thing would apply for active files such as
2699      tbar, sbar, psbar, which should not be reinitialised;
2700      only relevant for ecco-branch)
2701    
2702    checkpoint48h_post
2703    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2704    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2705    o Added SEAICE_initialHEFF to pkg/seaice
2706    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2707    
2708    checkpoint48g_post
2709    --- EOS:
2710    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2711      store total Potential in totPhyHyd for diagnostics & EOS.
2712    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2713    --- Pressure/geopotential gradient:
2714    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2715    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2716      ( changes results of global_ocean_pressure )
2717    o NLFS + z-coord.: add eta*Rho' contribution.
2718    o accurate phiHyd when using interface-W at the middle between 2 centers
2719     ( changes results of ideal_2D_oce )
2720    o includes r* 2nd term in potential gradient.
2721    
2722    checkpoint48f_post
2723    Merging from release1_p12:
2724    o Modifications for using pkg/exf with pkg/seaice
2725      - improved description of the various forcing configurations
2726      - added basic radiation bulk formulae to pkg/exf
2727      - units/sign fix for evap computation in exf_getffields.F
2728      - updated verification/global_with_exf/results/output.txt
2729    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2730      (SBO) core products, including oceanic mass, center-of-mass,
2731      angular, and bottom pressure (see pkg/sbo/README.sbo).
2732    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2733      to avoid negative values in shallow regions.
2734      - updated verification/natl_box/results/output.txt
2735      - updated verification/lab_sea/results/output.txt
2736    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2737    o Added useSingleCpuIO option (see PARAMS.h).
2738    o Updated useSingleCpuIO option in mdsio_writefield.F to
2739      work with multi-field files, e.g., for single-file pickup.
2740    o pkg/seaice:
2741      - bug fix in growth.F: QNET for no shortwave case
2742      - added HeffFile for specifying initial sea-ice thickness
2743      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2744    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2745      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2746    o pkg/seaice:
2747      - adjoint-friendly modifications
2748      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2749    
2750    checkpoint48e_post
2751    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2752    o dynamics: change definition of computational domain & adapt mom_fluxform
2753      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2754    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2755        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2756        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2757        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2758        inverted_barometer solid-body.cs-32x32x1
2759      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2760    
2761    checkpoint48d_post
2762    o in preparation for r*:
2763     a) use pre-computed gradient of hydrostatic potential:
2764        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2765     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2766        => affects results of glob_oce_pressure (different truncation error)  
2767      update output.txt of ideal_2D_oce & global_ocean_pressure
2768    
2769    checkpoint48d_pre
2770    o in preparation for r*:
2771      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2772      pass the 2 comp. of the grad. as arguments to momentum S/R.
2773      but for the moment, only used if it does not change the results.
2774    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2775    
2776    checkpoint48c_post
2777    Modifications in treatment of initial flux forcing controls
2778    to avoid extra storing of flux fields.
2779    
2780    checkpoint48c_pre
2781  o Added tidal_basin_2d experiment (currently 1D!)  o Added tidal_basin_2d experiment (currently 1D!)
2782  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2783    

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